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1. A, n. View full entry 1896
...Chem. In form A. The element argon. disused....
2. A chromosome in A, n. View full entry 1909
...a chromosome reckoned as the first in a classification varying from author to author (now disused);a chromosome of the set which normally occurs in all the members of a species....
3. ab-, comb. form View full entry 1904
...Prefixed to the names of units (esp. of electrical and magnetic quantities) in the practical system to form the names of the corresponding units in the centimetre-gram-second electromagnetic system, as abampere...
4. abdomen, n. View full entry ?1541
...Anat. and Zool. In humans and other vertebrates: the belly; the part of the trunk of body between the chest and the pelvis; the cavity of the body bounded...
5. abdominoscopy, n. View full entry 1826
...Originally: examination of the abdomen by visual inspection or by other standard methods of physical examination (palpation, percussion, etc.) (now disused). In later use: endoscopic examination of the abdominal cavity;...
6. acalephan, n. and adj. View full entry 1851
...Of or belonging to the former class Acalepha. Now disused....
7. acanthin, n. View full entry 1876
...A substance forming the skeletal elements of certain radiolarians whose skeletons are not siliceous, eventually identified as strontium chloride....
8. acanthopterous, adj. View full entry 1838
...Of a fish: spiny-finned; = acanthopterygious Now disused....
9. acanthopterygious, adj. View full entry 1753
...Ray-finned; = acanthopterygian...
10. acara, n. View full entry 1830
...Any of several deep-bodied, freshwater cichlid fishes native to Central and South America, with elongated dorsal and anal fins; esp. one now in the genus Aequidens or ...
11. accession, n. View full entry 1761
...a deed drawn up by the creditors of a bankrupt person, by which they accept an arrangement made by him or her for settling his or her debts....
12. accomplishment quotient in accomplishment, n. View full entry 1920
...= achievement quotientachievement2; abbreviated AQ....
13. acephal, n. and adj. View full entry 1845
...Zool. = acephalan Now disused....
14. acephalocyst, n. View full entry 1814
...A cyst formed by and containing the larva of a tapeworm, esp. one of the genus Echinococcus; a hydatid. ...
15. acephalocystic, adj. View full entry 1824
...Of or relating to acephalocysts; of the nature of acephalocysts....
16. acetoacetic, adj. View full entry 1880
...= acetoacetic ester...
17. acholia, n. View full entry 1835
...Absent or reduced secretion of bile. In early use also: any of several diseases (supposedly) characterized by this, esp. cholera (cholera4) and coeliac disease (now disused...
18. achromycin, n. View full entry 1952
...The antibiotic puromycin. rare. Now disused....
19. achroo-, comb. form View full entry 1878
...Forming the names of a small number of chemical compounds which are colourless analogues of another compound, as achroodextrin, achrooglycogen (now disused)....
20. acid-proof in acid, adj. and n. View full entry 1844
...impervious to acid; capable of resisting attack or degradation by acid;disused = acid-fast...
