| OC | obstetrical conjugate; occlusocervical; office call; on call; only child; optic chiasma; oral contra... |
|---|---|
| OCA | oculocutaneous albinism; olivopontocerebellar atrophy; oral contraceptive agent |
| OCC | object-centered coordinate [method]; oral cholecystography |
| OCG | omnicardiogram; oral cholecystogram |
| OCH | oral contraceptive hormone |
| water buffalo | <zoology> The European buffalo. Source: Websters Dictionary (01 Mar 1998) |
|---|---|
| water bug | <zoology> The Croton bug. Any one of numerous species of large, rapacious, aquatic, hemipterous insects belonging to Belostoma, Benacus, Zaitha, and other genera of the family Belostomatidae. Their hind legs are long and fringed, and act like oars. Some of these insects are of great size, being among the largest existing Hemiptera. Many of them come out of the water and fly about at night. Source: Websters Dictionary (01 Mar 1998) |
| water caltrop | <botany> The water chestnut. Source: Websters Dictionary (01 Mar 1998) |
| water can | <botany> Any one of several species of Nuphar; the yellow frog lily; so called from the shape of the seed vessel. See Nuphar, and cf. Candock. Source: Websters Dictionary (01 Mar 1998) |
| water canker | <medicine> See Canker. Source: Websters Dictionary (01 Mar 1998) |
| water cavy | <zoology> The capybara. Source: Websters Dictionary (01 Mar 1998) |
| water celery | <botany> A very acrid herb (Ranunculus sceleratus) growing in ditches and wet places. Synonym: cursed crowfoot. Source: Websters Dictionary (01 Mar 1998) |
| water cell | <zoology> A cell containing water; specifically, one of the cells or chambers in which water is stored up in the stomach of a camel. Source: Websters Dictionary (01 Mar 1998) |
| water chestnut | <botany> The fruit of Trapa natans and Trapa bicornis, Old World water plants bearing edible nutlike fruits armed with several hard and sharp points; also, the plant itself. Synonym: water caltrop. Source: Websters Dictionary (01 Mar 1998) |
| water chevrotain | <zoology> A large West African chevrotain (Hyaemoschus aquaticus). It has a larger body and shorter legs than the other allied species. Synonym: water deerlet. Source: Websters Dictionary (01 Mar 1998) |
| water chicken | <zoology> The common American gallinule. Source: Websters Dictionary (01 Mar 1998) |
| water chickweed | <botany> A small annual plant (Montia fontana) growing in wet places in southern regions. Source: Websters Dictionary (01 Mar 1998) |
| water chinquapin | <botany> The American lotus, and its edible seeds, which somewhat resemble chinquapins. Cf. Yoncopin. Source: Websters Dictionary (01 Mar 1998) |
| water-clear cell of parathyroid | A variety of chief cell, so-called because the cytoplasm contains much glycogen that is not preserved or stained in the usual preparation. Synonym: wasserhelle cell. (05 Mar 2000) |
| water cock | <zoology> A large gallinule (Gallicrex cristatus) native of Australia, India, and the East Indies. In the breeding season the male is black and has a fleshy red caruncle, or horn, on the top of its head. Synonym: kora. Source: Websters Dictionary (01 Mar 1998) |