Copy of `Dorland's Medical Dictionary`

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Dorland's Medical Dictionary
Category: Health and Medicine > Medical Dictionary
Date & country: He/al/th a, US
Words: 23489


AA amyloidosis
secondary amyloidosis.

AA interval
the interval between two consecutive atrial stimuli.

AA protein
AA amyloid.

AAAS
American Association for the Advancement of Science.

AABB
American Association of Blood Banks.

AACE
American Association of Clinical Endocrinologists.

AAFP
American Academy of Family Physicians.

AAGP
American Academy of General Practice.

AAI pacemaker
atrial demand inhibited pacemaker.

AAIR pacemaker
an atrial demand inhibited pacemaker that is responsive to the patient's respiratory rate and thus to exercise and metabolic needs.

AAMRL
American Association of Medical Record Librarians.

AAO
American Association of Orthodontists; American Academy of Ophthalmology; American Academy of Otolaryngology; American Academy of Osteopathy.

AAO-HNS
American Academy of Otolaryngology–Head and Neck Surgery.

AAOS
American Academy of Orthopaedic Surgeons.

AAP
American Academy of Pediatrics; American Academy of Periodontology; American Association of Pathologists.

AAPM&R
American Academy of Physical Medicine and Rehabilitation.

AARC
American Association for Respiratory Care.

Aaron sign
(ar´әn) a sensation of pain or distress in the epigastric or precordial region on pressure over the McBurney point in appendicitis.

AARP
American Association of Retired Persons.

AAT pacemaker
atrial demand triggered pacemaker.

ab
Latin word meaning from.

Ab
antibody.

abacavir
(ә-bak´ә-vir) a non-nucleoside reverse transcriptase inhibitor used as an antiretroviral in the treatment of human immunodeficiency virus infection; administered orally as the sulfate salt.

abarognosis
(a″bar-әg-no´sis) loss of sense of weight.

abasia trepidans
(ә-ba´zhә trep´ĭ-danz) trembling abasia

abasia-astasia
(ә-ba´zhә-ә-sta´zhә) astasia-abasia.

abdominal
(ab-dom´ĭ-nәl) pertaining to the abdomen.

abdominal delivery
cesarean section.

abdominal fissure
a congenital cleft in the abdominal wall; see also gastroschisis. Called also celoschisis.

abdominal fistula
an abnormal passage between a hollow abdominal organ and the surface of the abdomen.

abdominal hysterectomy
that performed through the abdominal wall. Called also abdominohysterectomy and laparohysterectomy.

abdominal obesity
android obesity.

abdominal pregnancy
ectopic pregnancy with development of the embryo in the abdominal cavity.

abdominal pulse
the pulse felt over the abdominal aorta.

abdominal reflexes
contractions of the abdominal muscles about the navel on stimulating the abdominal skin. It indicates that the spinal cord from the eighth to the twelfth thoracic nerve is intact.

abdominal respiration
inhalation accomplished mainly by the diaphragm and respiratory muscles.

abdominal ribs
false ribs.

abdominal ring
deep inguinal ring.

abdominal section
laparotomy; incision of the abdominal wall.

abdominal testis
an undescended testis located in the abdominal cavity.

abdominal thrust
Heimlich maneuver.

abdominocardiac reflex
any reflex in the heart produced by stimulating the abdominal sympathetic nerves. See also Livierato sign.

abdominocentesis
(ab-dom″ĭ-no-sen-te´sis) abdominal paracentesis.

abdominocystic
(ab-dom″ĭ-no-sis´tik) pertaining to the abdomen and gallbladder.

abdominohysterectomy
(ab-dom″ĭ-no-his″tәr-ek´tә-me) abdominal hysterectomy.

abdominohysterotomy
(ab-dom″ĭ-no-his″tәr-ot´ә-me) abdominal hysterotomy.

abdominothoracic arch
the lower boundary of the front of the thorax.

abdominovaginal
(ab-dom″ĭ-no-vaj´ĭ-nәl) pertaining to the abdomen and vagina.

abdominovesical
(ab-dom″ĭ-no-ves´ĭ-kәl) abdominocystic. pertaining to or connecting the abdominal cavity and urinary bladder.

abdominovesical pouch
the pocketlike reflection of the peritoneum from the abdominal wall to the anterior surface of the bladder.

abducens
(ab-doo´sәnz) Latin word meaning carrying away from; abducent.

abducens nerve
abducent nerve.

abducent
(ab-doo´sәnt) serving to abduct a part.

abduct
(ab-dukt´) to draw away from an axis or the median plane.

abduction
(ab-duk´shәn) the act of abducting; the state of being abducted. Abduction of the fingers.

abductor
(ab-duk´tor) a muscle that moves a part away from an axis or from the midline of the body or some other structure.

aberrancy
(ab-er´әn-se) aberration (3).

aberrant
(ă-ber´әnt) (ab´әr-әnt) wandering or deviating from the usual or normal course.

aberrant duct
any duct that is not usually present or that takes an unusual course or direction.

aberrant goiter
goiter of an ectopic thyroid gland.

aberratio
(ab″әr-a´she-o) Latin word meaning aberration.

ABGs
arterial blood gases.

ablatio
(ab-la´she-o) Latin word meaning detachment. ablatio retinae retinal detachment.

ABLB test
alternate binaural loudness balance test.

ablepharon
(a″blef´ә-ron) ablepharia.

abnormal occlusion
malocclusion.

abnormality
(ab″nor-mal´ĭ-te) the state of being unlike the usual condition. a malformation or anomaly. left atrial abnormality an atrial conduction abnormality accompanied by an enlarged left atrium; on the electrocardiogram it is seen as notched upright P waves in ...

aborad
(ab-or´ad) away from the mouth.

abort
(ә-bort´) to arrest prematurely a disease or developmental process; to expel the products of conception before the fetus is viable.

abortifacient
(ә-bor″tĭ-fa´shәnt) causing abortion. an agent that induces abortion.

abortive
(ә-bor´tiv) incompletely developed. abortifacient. cutting short the course of a disease.

abortive poliomyelitis
the minor illness of poliomyelitis; see poliomyelitis.

abortus
(ә-bor´tәs) a dead fetus or one that is nonviable (defined as one weighing less than 500 g at birth).

above-elbow (A-E) amputation
amputation of the upper limb between the elbow and the shoulder.

above-knee (A-K) amputation
transfemoral amputation.

ABR
auditory brainstem response.

abrachia
(ә-bra´ke-ә) a developmental anomaly consisting of absence of the arms.

abrachiocephalia
(ә-bra″ke-o-sĕ-fa´le-ә) acephalobrachia.

abrasion layer
a protective covering of gelatin enclosing an emulsion on x-ray film; called also overcoat.

abrasive
(ә-bra´siv) causing abrasion. an agent that produces abrasion.

Abrikosov (Abrikossoff) tumor
granular cell tumor.

abscission
(ab-sĭ´zhәn) removal by cutting.

abscopal
(ab-sko´pәl) pertaining to the effect on nonirradiated tissue resulting from irradiation of other tissues of the body.

Absidia
(ab-sid´e-ә) a genus of perfect fungi; the species A. ramo´sa is found on decaying plants and baked goods and can cause mucormycosis.

absolute
(ab´sә-lldbomact) free from limitations; unlimited; uncombined.

absolute accommodation
the accommodation of either eye separately.

absolute alcohol
dehydrated alcohol.

absolute near point
the near point for either eye alone with accommodation relaxed.

absolute scotoma
an area within the visual field in which perception of light is entirely lost.

absorbable
(ab-sorb´ә-bәl) capable of being absorbed.

absorbefacient
(ab-sor″bә-fa´shәnt) causing absorption. absorbent (def. 3).

absorbent vessel
lymphatic vessel.

absorption coefficient
absorptivity. linear absorption coefficient. mass absorption coefficient.

absorption lacuna
resorption lacuna.

absorption lines
dark lines in the spectrum due to absorption of light by the substance through which the light has passed.

absorptive
(ab-sorp´tiv) having the power of absorption; involving absorption.

absorptivity
(ab″sorp-tiv´ĭ-te) a measure of the amount of light absorbed by a solution.

abstergent
(ab-stur´jәnt) cleansing or detergent. a cleansing agent.

abstinence syndrome
withdrawal (def. 3).

abutment
(ә-but´mәnt) a part of a structure that sustains thrust or pressure. a tooth or root that serves as anchorage for a bridge.