Webster's Dictionary, 1913

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Myelencephalous adjective (Zoology) Of or pertaining to the Myelencephala.

Myelin noun [ Greek marrow.] (Physiol. Chem.) (a) A soft white substance constituting the medullary sheaths of nerve fibers, and composed mainly of cholesterin, lecithin, cerebrin, albumin, and some fat. (b) One of a group of phosphorized principles occurring in nerve tissue, both in the brain and nerve fibers.

Myelitis noun [ New Latin , from Greek myelo`s marrow + -itis .] (Medicine) Inflammation of the spinal marrow or its membranes.

Myelocœle noun [ Greek myelo`s marrow + koi^los hollow.] (Anat.) The central canal of the spinal cord.

Myelogenic adjective [ Greek myelo`s marrow + the root of ... to be born.] (Physiol.) Derived from, or pertaining to, the bone marrow.

Myeloid adjective [ Greek myelo`s marrow + -oid .] Resembling marrow in appearance or consistency; as, a myeloid tumor.

Myeloidin noun [ Myelin + -oid + -in .] (Physiol. Chem.) A substance, present in the protoplasm of the retinal epithelium cells, and resembling, if not identical with, the substance ( myelin ) forming the medullary sheaths of nerve fibers.

Myelon noun [ New Latin , from Greek myelo`s marrow.] (Anat.) The spinal cord. (Sometimes abbrev. to myel .)

Myelonal adjective (Anat.) Of or pertaining to the myelon; as, the myelonal , or spinal, nerves.

Myeloneura noun plural [ New Latin , from Greek myelo`s + ney^ron a nerve.] (Zoology) The Vertebrata.

Myeloplax noun ; plural English Myeloplaxes , Latin Myeloplaces . [ New Latin , from Greek myelo`s marrow + ... anything flat and broad.] (Anat.) One of the huge multinucleated cells found in the marrow of bone and occasionally in other parts; a giant cell. See Osteoclast .

Mygale noun [ Latin , a field mouse, Greek ....] (Zoology) A genus of very large hairy spiders having four lungs and only four spinnerets. They do not spin webs, but usually construct tubes in the earth, which are often furnished with a trapdoor. The South American bird spider ( Mygale avicularia ), and the crab spider, or matoutou ( M. cancerides ) are among the largest species. Some of the species are erroneously called tarantulas , as the Texas tarantula ( M. Hentzii ).

Mykiss noun [ Russian muikize , probably from a native name.] (Zoology) A salmon ( Salmo mykiss , syn. S. purpuratus ) marked with black spots and a red throat, found in most of the rivers from Alaska to the Colorado River, and in Siberia; -- called also black-spotted trout , cutthroat trout , and redthroat trout .

Mylodon noun [ Greek ... a mill + 'odoy`s , 'odo`ntos , a tooth.] (Paleon.) An extinct genus of large slothlike American edentates, allied to Megatherium.

Mylohyoid adjective [ Greek ... the molar teeth + English hyoid .] (Anat.) Pertaining to, or in the region of, the lower jaw and the hyoid apparatus; as, the mylohyoid nerve.

Myna noun [ See Mino bird .] (Zoology) Any one of numerous species of Asiatic starlings of the genera Acridotheres , Sturnopastor , Sturnia , Gracula , and allied genera. In habits they resemble the European starlings, and like them are often caged and taught to talk. See Hill myna , under Hill , and Mino bird . [ Spelt also mynah .]

Mynchen noun [ Anglo-Saxon mynecen , from munec monk. See Monk .] A nun. [ Obsolete]

Mynchery noun A nunnery; -- a term still applied to the ruins of certain nunneries in England.

Mynheer noun [ Dutch mijnheer .] The Dutch equivalent of Mr . or Sir ; hence, a Dutchman.

Myo- A combining form of Greek ..., ..., a muscle ; as, myo graph, myo chrome.

Myocarditis noun [ New Latin see Myocardium .] (Medicine) Inflammation of the myocardium.

Myocardium noun [ New Latin , from Greek ..., ..., muscle + ... heart.] (Anat.) The main substance of the muscular wall of the heart inclosed between the epicardium and endocardium.

Myochrome noun [ Myo- + Greek ... color.] (Physiol.) A colored albuminous substance in the serum from red-colored muscles. It is identical with hemoglobin.

Myocomma noun ; plural Latin Myocommata , English Myocommas . [ New Latin See Myo- , and Comma .] (Anat.) A myotome.

Myodynamics noun [ Myo- + dynamics .] (Physiol.) The department of physiology which deals with the principles of muscular contraction; the exercise of muscular force or contraction.

Myodynamiometer noun A myodynamometer.

Myodynamometer noun [ Myo- + English dynamometer .] (Physiol.) An instrument for measuring the muscular strength of man or of other animals; a dynamometer. Dunglison.

Myoepithelial adjective [ Myo- + epithelial .]
1. (Biol.) Derived from epithelial cells and destined to become a part of the muscular system; -- applied to structural elements in certain embryonic forms.

2. (Zoology) Having the characteristics of both muscle and epithelium; as, the myoepithelial cells of the hydra.

Myogalid noun [ Myo- + Greek ... a weasel.] (Zoology) One of the Myogalodæ , a family of Insectivora, including the desman, and allied species.

Myogram noun [ Myo- + - gram .] (Physiol.) See Muscle curve , under Muscle .

Myograph noun [ Myo- + - graph .] (Physiol.) An instrument for determining and recording the different phases, as the intensity, velocity, etc., of a muscular contraction.

Myographic, Myographical adjective Of or pertaining to myography.

Myography noun [ Confer French myographie .] The description of muscles, including the study of muscular contraction by the aid of registering apparatus, as by some form of myograph; myology.

Myohæmatin noun [ Myo- + hæmatin .] (Physiol.) A red-colored respiratory pigment found associated with hemoglobin in the muscle tissue of a large number of animals, both vertebrate and invertebrate.

Myoid adjective [ Myo- + - oid .] Composed of, or resembling, muscular fiber.

Myolemma noun [ New Latin , from Greek ..., ..., a muscle + ... skin.] (Anat.) Sarcolemma.

Myolin noun [ Greek ..., ..., muscle.] (Physiol.) The essential material of muscle fibers.

Myologic, Myological adjective Of or pertaining to myology.

Myologist noun One skilled in myology.

Myology noun [ Myo- + - logy : confer French myologie .] That part of anatomy which treats of muscles.

Myoma noun [ New Latin See Myo- , and -oma .] (Medicine) A tumor consisting of muscular tissue.

Myomancy noun [ Greek my^s mouse + -mancy .] Divination by the movements of mice.

Myomorph noun One of the Myomorpha.

Myomorpha noun plural [ New Latin , from Greek my^s , myo`s , a mouse + ... form.] (Zoology) An extensive group of rodents which includes the rats, mice, jerboas, and many allied forms.

Myopathia noun [ New Latin , from Greek ..., ..., a muscle + ..., ..., to suffer.] (Medicine) Any affection of the muscles or muscular system.

Myopathic adjective (Medicine) Of or pertaining to myopathia.

Myopathy noun Same as Myopathia .

Myope noun [ French, from Greek ..., ...; ... to close, shut the eyes + ..., ..., the eye.] A person having myopy; a myops.

Myophan noun [ Myo- + Greek ... to show.] (Zoology) A contractile striated layer found in the bodies and stems of certain Infusoria.

Myopia noun [ New Latin See Myope .] (Medicine) Nearsightedness; shortsightedness; a condition of the eye in which the rays from distant object are brought to a focus before they reach the retina, and hence form an indistinct image; while the rays from very near objects are normally converged so as to produce a distinct image. It is corrected by the use of a concave lens.