Psychography Psy·chog"ra·phy noun [
Psycho- +
-graphy .]
1. A description of the phenomena of mind. 2. (Spiritualism) Spirit writing.
Psychologic, Psychological Psy`cho·log"ic, Psy`cho·log"ic·al adjective [ Confer French
psychologique .]
Of or pertaining to psychology. See Note under Psychic . --
Psy`cho*log"ic*al*ly ,
adverb
Psychologist Psy·chol"o·gist noun [ Confer French
psychologiste .]
One who is versed in, devoted to, psychology.
Psychologue Psy"cho·logue noun A psychologist.
Psychology Psy·chol"o·gy noun plural Psychologies [
Psycho- +
-logy : confer French
psychologie . See
Psychical .]
The science of the human soul; specifically, the systematic or scientific knowledge of the powers and functions of the human soul, so far as they are known by consciousness; a treatise on the human soul. Psychology , the science conversant about the phenomena of the mind, or conscious subject, or self.
Sir W. Hamilton.
Psychomachy Psy·chom"a·chy noun [ Latin
psychomachia , from Greek
psychh` the soul + ... fight: confer ... desperate fighting.]
A conflict of the soul with the body.
Psychomancy Psy"cho·man`cy noun [
Psycho- +
-mancy : confer French
psychomancie .]
Necromancy.
Psychometry Psy·chom"e·try noun [
Psycho- +
-metry .]
(Physiol.) The art of measuring the duration of mental processes, or of determining the time relations of mental phenomena. --
Psy`cho*met"ric adjective
Psychopannychism Psy"cho·pan"ny·chism noun [
Psycho- + Greek ... to spend all night long; ..., ..., all + ... night.]
(Theol.) The doctrine that the soul falls asleep at death, and does not wake until the resurrection of the body. --
Psy`cho*pan"ny*chism noun
Psychopathy Psy·chop"a·thy noun [
Psycho- + Greek ..., ....]
(Medicine) Mental disease. See Psychosis , 2. --
Psy`cho*path"ic ,
adjective --
Psy*chop"a*thist ,
noun
Psychophysical Psy`cho·phys"ic·al adjective Of or pertaining to psychophysics; involving the action or mutual relations of the psychical and physical in man. Psychophysical time (Physiol.) ,
the time required for the mind to transform a sensory impression into a motor impulse. It is an important part of physiological or reaction time . See under Reaction .
Psychophysics Psy`cho·phys"ics noun [
Psycho- +
physics .]
The science of the connection between nerve action and consciousness; the science which treats of the relations of the psychical and physical in their conjoint operation in man; the doctrine of the relation of function or dependence between body and soul.
Psychopomp Psy"cho·pomp noun [ Greek ...;
psychh` the soul + ... to send: confer French
psychopompe .]
(Myth.) A leader or guide of souls . J. Fiske.
Psychosis Psy·cho"sis noun [ New Latin See
Psycho- .]
1. Any vital action or activity. Mivart. 2. (Medicine) A disease of the mind; especially, a functional mental disorder, that is, one unattended with evident organic changes.
Psychotherapeutics Psy`cho·ther`a·peu"tics noun [
Psycho- +
therapeutics .]
(Medicine) The treatment of disease by acting on the mind, as by suggestion; mind cure; psychotherapy.
Psychotherapy Psy`cho·ther"a·py noun [
Psycho- +
therapy .]
(Medicine) Psychotherapeutics.
Psychozoic Psy`cho·zo"ic adjective [
Psycho- + Greek ... life.]
(Geol.) Designating, or applied to the Era of man; as, the psychozoic era.
Psychrometer Psy·chrom"e·ter noun [ Greek
psychro`s cold +
-meter : confer French
psychromètre .]
An instrument for measuring the tension of the aqueous vapor in the atmosphere, being essentially a wet and dry bulb hygrometer.
Psychrometrical Psy`chro·met"ric·al adjective Of or pertaining to the psychrometer or psychrometry.
Psychrometry Psy·chrom"e·try noun Hygrometry.
Psylla Psyl"la noun ;
plural Psyllæ . [ New Latin , from Greek ... a flea.]
(Zoology) Any leaping plant louse of the genus Psylla , or family Psyllidæ .
Ptarmigan Ptar"mi·gan noun [ Gael.
tarmachan ; confer Ir.
tarmochan ,
tarmonach .]
(Zoology) Any grouse of the genus Lagopus , of which numerous species are known. The feet are completely feathered. Most of the species are brown in summer, but turn white, or nearly white, in winter. » They chiefly inhabit the northern countries and high mountains of Europe, Asia, and America. The common European species is
Lagopus mutus . The Scotch grouse, red grouse, or moor fowl (
Latin Scoticus ), is reddish brown, and does not turn white in winter. The white, or willow, ptarmigan (
Latin albus ) is found in both Europe and America.
Ptenoglossa Pte`no·glos"sa noun plural [ New Latin , from Greek ... feathered + ... tongue.]
(Zoology) A division of gastropod mollusks having the teeth of the radula arranged in long transverse rows, somewhat like the barbs of a feather.
Ptenoglossate Pte`no·glos"sate adjective (Zoology) Of or pertaining to the Ptenoglossa.
Pteranodon Pte·ran"o·don noun [ Greek ... wing + ... priv. + ..., ..., a tooth.]
(Paleon.) A genus of American Cretaceous pterodactyls destitute of teeth. Several species are known, some of which had an expanse of wings of twenty feet or more.
Pteranodontia Pte·ran`o·don"ti·a noun plural [ New Latin ]
(Paleon.) A group of pterodactyls destitute of teeth, as in the genus Pteranodon .
Pterichthys Pte·rich"thys noun [ New Latin , from Greek ... wing + ... fish.]
(Paleon.) A genus of Devonian fossil fishes with winglike appendages. The head and most of the body were covered with large bony plates. See Placodermi .
Pteridologist Pter`i·dol"o·gist noun One who is versed in pteridology.
Pteridology Pter`i·dol"o·gy noun [ Greek ..., ..., a fern +
-logy .]
That department of botany which treats of ferns.
Pteridomania Pter`i·do·ma"ni·a noun [ Greek ..., ..., a fern + English
mania .]
A madness, craze, or strong fancy, for ferns. [ R.]
C. Kingsley.
Pteridophyta Pter`i·doph"y·ta noun plural [ New Latin , from Greek ..., ..., a fern + ... a plant.]
(Botany) A class of flowerless plants, embracing ferns, horsetails, club mosses, quillworts, and other like plants. See the Note under Cryptogamia . --
Pter"i*do*phyte` noun » This is a modern term, devised to replace the older ones
acrogens and
vascular Cryptogamia .
Pterobranchia Pter`o·bran"chi·a noun plural [ New Latin , from Greek ... a wing + ... ....]
(Zoology) An order of marine Bryozoa, having a bilobed lophophore and an axial cord. The genus Rhabdopleura is the type. Called also Podostomata . See Rhabdopleura .
Pteroceras Pte·roc"e·ras noun [ New Latin , from Greek ... a wing + ... a horn.]
(Zoology) A genus of large marine gastropods having the outer border of the lip divided into lobes; -- called also scorpion shell .
Pterocletes Pter`o·cle"tes noun plural [ New Latin , fr
Pterocles , the typical genus, from Greek ... feather + ..., ..., a key, tongue of a clasp.]
(Zoology) A division of birds including the sand grouse. They are in some respects intermediate between the pigeons and true grouse. Called also Pteroclomorphæ .
Pterodactyl Pter`o·dac"tyl noun [ Greek ... a wing + ... finger, toe: confer French
ptérodactyle .]
(Paleon.) An extinct flying reptile; one of the Pterosauria. See Illustration in Appendix.
Pterodactyli Pter`o·dac"ty·li noun plural [ New Latin ]
(Paleon.) Same as Pterosauria .
Pteroglossal Pter`o·glos"sal adjective [ Greek ... a feather + ... tongue.]
(Zoology) Having the tongue finely notched along the sides, so as to have a featherlike appearance, as the toucans.
Pteron Pte"ron noun [ New Latin , from Greek ... a wing.]
(Anat.) The region of the skull, in the temporal fossa back of the orbit, where the great wing of the sphenoid, the temporal, the parietal, and the frontal hones approach each other.
Pteropappi Pter`o·pap"pi noun plural [ New Latin , from Greek ... a feather, a bird + ... a grandfather.]
(Zool.) Same as Odontotormæ .
Pterophore Pter"o·phore noun [ Greek ... a feather + ... to bear.]
(Zoology) Any moth of the genus Pterophorus and allied genera; a plume moth. See Plume moth , under Plume .
Pteropod Pter"o·pod noun [ Greek ... wing-footed; ... a feather, wing + ..., ..., foot: confer French
ptéropode .]
(Zoology) One of the Pteropoda.
Pteropoda Pte·rop"o·da noun plural [ New Latin ]
(Zoology) A class of Mollusca in which the anterior lobes of the foot are developed in the form of broad, thin, winglike organs, with which they swim at near the surface of the sea. » The Pteropoda are divided into two orders:
Cymnosomata , which have the body entirely naked and the head distinct from the wings; and
Thecosomata , which have a delicate transparent shell of various forms, and the head not distinct from the wings.
Pteropodous Pte·rop"o·dous adjective (Zoology) Of or pertaining to the Pteropoda.
Pterosaur Pter"o·saur noun [ Greek ... wind + ... a lizard.]
(Paleon.) A pterodactyl.
Pterosauria Pter`o·sau"ri·a noun plural [ New Latin ]
(Paleon.) An extinct order of flying reptiles of the Mesozoic age; the pterodactyls; -- called also Pterodactyli , and Ornithosauria . » The wings were formed, like those of bats, by a leathery expansion of the skin, principally supported by the greatly enlarged outer or " little" fingers of the hands. The American Cretaceous pterodactyls had no teeth. See
Pteranodontia , and
Pterodactyl .
Pterosaurian Pter`o·sau"ri·an adjective (Paleon.) Of or pertaining to the Pterosauria.
Pterostigma Pter`o·stig"ma noun ;
plural Pterostigmata . [ New Latin , from Greek ... wing + ..., ..., a mark.]
(Zoology) A thickened opaque spot on the wings of certain insects.
Pterotic Pte·ro"tic adjective [ Greek ... wing + ..., ..., ear.]
(Anat.) Of or pertaining to, or designating, a bone between the proötic and epiotic in the dorsal and outer part of the periotic capsule of many fishes. --
noun The pterotic bone. » The
pterotic bone is so called because fancied in some cases to resemble in form a bird's wing
Pterygium Pte·ryg"i·um noun ;
plural English
Pterygiums , Latin
Pterygia . [ New Latin , from Greek ..., properly a dim, akin to ... a feather.]
(Medicine) A superficial growth of vascular tissue radiating in a fanlike manner from the cornea over the surface of the eye.
Pterygoid Pter"y·goid adjective [ Greek ..., ..., a wing +
-oid .]
(Anat.) (a) Like a bird's wing in form; as, a pterygoid bone. (b) Of, pertaining to, or in the region of, the pterygoid bones, pterygoid processes, or the whole sphenoid bone. --
noun A pterygoid bone. Pterygoid bone (Anat.) ,
a bone which corresponds to the inner plate of the pterygoid process of the human skull, but which, in all vertebrates below mammals, is not connected with the posterior nares, but serves to connect the palatine bones with the point of suspension of the lower jaw. --
Pterygoid process (Anat.) ,
a process projecting downward from either side of the sphenoid bone, in man divided into two plates, an inner and an outer. The posterior nares pass through the space, called the pterygoid fossa , between the processes.
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