ACARPIA 



20 



ACESODYNE 



Acarpia (ah-karp'-e-ah) \_a.KapKia\. Sterility, barren- 

 ness, unfruitfulness. 



Acatalepsia (ali-kat-al-ep'-se-ah). Same as Acatalepsy 

 (Illus. Diet.). 



Acataleptic. (See Illus. Diet.) 2. A person affected 

 with acatalepsy. 



Acathectic iah-kath-ek' -tik) [aaadenTOQ , ungovernable]. 

 Not able to retain. A. Jaundice. See Jaundice. 



Accelerator (ak-seV -e-ra-tor) \accelerare, to has- 

 ten]. I. A nerve carrying motor impulses to the 

 heart. 2. A muscle which hastens a physiologic 

 discharge. A. partus, an abortifacient or ecbolic 

 means. 



Accentuated (ak-senf '-u-a-ted). Abnormally or un- 

 usually distinct, as respiratory or heart sounds. 



Accessispinal (ak-ses-e-spi' '-rial). Coues' name for a 

 muscle which is accessory to a spinal muscle. 



Accessorii Willisii, Accessory Nerves of Willis. 

 See under Nerves. 



Accessorius {ak-ses-o f -re-us) [pi., accessorif\. 1. Con- 

 tributory in a secondary degree ; accessory. 2. An 

 accessory. See Muscles, Table of (Illus. Diet.); and 

 under Nerves. 



Accipenserin (ak-se-pen' '-sur-in). See Acipenserin. 



Accipiter. (See Illus. Diet.) A. quinqueceps, a 

 five-headed occipiter bandage. A. triceps, a three- 

 headed occipiter bandage. 



Accommodation. (See Illus. Diet.) A., Amplitude 

 of. See A., Range of. A., Asthenopia of, sub- 

 normal power of the function of accommodation, or 

 the pain or discomfort from accommodative effort. 

 A., Binocular, the combined accommodation of the 

 two eyes. A., Breadth of. See A., Range of 

 A., Line of. See Lines t Table of ( Illus. Diet.). A., 

 Mechanism of. See A. of the Eye (Illus. Diet.). 

 A., Negative, the opposite of positive accommo- 

 dation, the refractive power of the eye being les- 

 sened. A., Positive, that when the eye being 

 focused for a more distant object is required for fixa- 

 tion upon a nearer point. A., Range of Relative, 

 the range of accommodation at the command of the 

 eye for any particular degree of convergence. A., Re- 

 gion of, the extent controlled by the eye within which 

 it distinguishes objects clearly from the state of rest to 

 that of maximum accommodation. A., Spasm of, a 

 term used to express excessive or persistent contrac- 

 tion of the ciliary muscle, following the attempt to 

 overcome error of refraction. It simulates myopia. 

 A., Helmholtz's Theory of, that the increased con- 

 vexity of the lens is produced by a relaxation of the 

 suspensory ligament, thus removing the influence 

 which tends to flatten the lens and permitting the lat- 

 ter by its elasticity to become more convex. A., 

 Schoen's Theory of, that the contraction of the 

 ciliary muscle produces the same effect on the lens as 

 is produced upon a rubber ball when held in both 

 hands and compressed with the fingers. A., Tschern- 

 ing's Theory of, by the contraction of the ante- 

 rior part of both the radiating and circular fibers of 

 the ciliary muscle the ciliary processes are drawn 

 backward, and the suspensory ligament pulled 

 backward and outward ; pressure of the anterior por- 

 tion of the muscle causes the increased convexity of 

 the lens. 



Accommodative (ak-otn'-o-da-tiv) \_accotnmodare, to 

 adjust]. Pertaining to the function of accommodation, 

 or resulting from it. 



Accretion. (See Illus. Diet.) 3. An accumulation of 

 foreign matter in any cavity. 



Accubation (ak-u-ba'-shun) [accubare, to recline]. 

 I. A reclining posture; the taking to one's bed. 2. 

 The act of lying in bed with another person. 



Accumulation (ak-u-mu-la' -shun) \accumulare, to 

 heap up]. 1. An amassing or collecting together. 

 2. A mass, heap or aggregation. A., Fecal, an ex- 

 cessive aggregation of feces in the large intestine; 

 coprostasis. 



Acelia, Accelia (ah-se'-le-ah) [a, priv. ; souia, a cavity]. 

 The absence of a natural cavity. Syn. , Acclosis. 



Acelomate, Acelomic, Accelomate, Accelomic (ah- 

 sel'-om-at, -ik). Destitute of a proper body cavity. 



Acelosis, Accelosis (ah-sel-o / -sis). See Acelia. 



Acephalia. (See Illus. Diet.) A. spuria. See Hani- 

 acephalia. 



Acephalocyst, Acephalocystis. (See Illus. Diet.) 

 A hydatid consisting only of a membranous sac con- 

 taining fluid. A. endogena, a sterile echinococcus 

 cyst proliferating endogenously. A. eremita, a soli- 

 tary sterile hydatid. A. sterilis. A. exogena, a 

 sterile echinococcus cyst proliferating oxogeii* 

 A. granulosa, a sterile echinococcus cyst with gran- 

 ular walls. A. multifida, a sterile echinococcus 

 cyst with branch-like prolongations. A. ovis tra- 

 gelaphi (Cobbold). See Echinococcus hominis, 

 A. ovoidea, Laennec, a variety studded 

 whitish spheroidal bodies. A. plana, Lai : i 

 name for certain concretions found in the sheaths of 

 tendons and in muscles. A. prolifera, a multiple, 

 sterile echinococcus cyst. A. socialis. A. socialis. 

 See A. prolifera. A. sterilis. See A. eremita. 

 A. surculigera, a sterile echinococcus cyst with 

 sucker-like prominences. 



Acephalophorous (ah-sefal-of -or-us) [«, priv.; Keoa'/r,. 

 head ; tpipeiv, to bear] . Destitute of a distinct 

 head. 



Acephalorrhachus (ah-sefal-or-a'-kus) [a, priv.: 

 KEtyaTJ], head ; pa^'f, spine]. A monster destitute 

 of head and vertebral column. 



Acephalos (ah-sef'-al-os). See Acephalus. 



Acephalostoma (ah-sefal-os' '-to-mah). Same as Aceph 

 alostomus (Illus. Diet.). 



Acephalothorax (ah-sef-al-o-tho' '-raks). A monstei 

 destitute of head and thorax. Syn., Acephalothortts. 



Acephalus. (See Illus. Diet.) A. dibrachius, ar 

 acephalus with two upper limbs in a more or less nidi 

 mentary state. A. dipus, an acephalus with two mort 

 or less developed lower extremities. A. monobra- 

 chius, one with one upper extremity, a cervical verte 

 bra, and one or two more or less developed lower ex 

 tremities. Syn., Acephalobrachia. A. monopus. 

 one with only one lower extremity, more or h 

 veloped. Syn., Acephalopodus. A. paracephalus 

 See Paracephalus and Hemiacephalus. Cf. AfyU 

 phalus, Anencephalus. A. sympus, one in 

 the trunk ends in a long conical point at the end ol 

 which are attached one or two feet. 



Acephaly (ah-sef'-al-e). See Acephalia (Illus. 1 



Acerate (as'-er-at) [acer, sharp]. I. A salt of aceri> 

 acid. 2. Sharp-pointed, acicular. 



Acerbous (ah-serb'-us). See Acerb (Illus. Diet.). 



Acercus (ah-sur'-kus) \iiKipKoc, without a tail]. -V 

 monstrosity without a tail or the coccygeal vertebra. 



Acerdol (as f -ur-dol). Mn0 2 K 2 KOIl, an <>x 

 product of potassium and manganese. It is used .1 

 an oxidizer and disinfectant. 



Aceritous (ah-ser f -e-tus). See Acerotus (Illus. I 



Acerode (as'-er-od). See Aceridc (Illus. Diet.). 



Acervuloma (ak-ser-vu-lo' '-mah) [acervu/us, lin' 1 ; 

 heap; pi., acemulomas, acervulomata]. See I 

 nioma. 



Acervus (ah-ser'-vus) [L., a heap]. Brain-sand. 

 tcervulus (Illus. Diet.). 



Acesodyne, Acesodynous (ah-scs'-o-din, -us) [ 

 Jwof]. Allaying pain, anodyne. 



