| OA | obstructive apnea; occipital artery; occipito-anterior; occiput anterior; octanoic acid; ocular albi... |
|---|---|
| OA/BVM | oral airway/bag-valve-mask |
| OAS | old age security; oral allergy syndrome; osmotically active substance |
| OAW | oral airways |
| OC | obstetrical conjugate; occlusocervical; office call; on call; only child; optic chiasma; oral contra... |
| sea-blue histiocyte | A histiocyte containing cytoplasmic granules that stain bright blue with haematologic stains such as Wright-Giemsa; found in bone marrow and in the spleen, associated with hepatosplenomegaly and thrombocytopenic purpura and in other blood diseases. (05 Mar 2000) |
|---|---|
| sea-blue histiocyte disease | Splenomegaly and mild thrombocytopenia, with histiocytes in the bone marrow which contain cytoplasmic granules that stain bright blue; sometimes familial; perhaps a lipidosis; autosomal recessive inheritance. (05 Mar 2000) |
| sea-blue histiocyte syndrome | <syndrome> Rare disorder consisting of splenomegaly, mild purpura secondary to thrombocytopenia, and occasionally, hepatic cirrhosis associated with the appearance of numerous histiocytes in the spleen and bone marrow which stain a sea-blue colour. It is sometimes considered a variant of niemann-pick disease. (12 Dec 1998) |
| sea bream | <zoology> Any one of several species of sparoid fishes, especially the common European species (Pagellus centrodontus), the Spanish (P. Oweni), and the black sea bream (Cantharus lineatus); called also old wife. Source: Websters Dictionary (01 Mar 1998) |
| sea bug | <zoology> A chiton. Source: Websters Dictionary (01 Mar 1998) |
| sea butterfly | <zoology> A pteropod. Source: Websters Dictionary (01 Mar 1998) |
| sea cabbage | <botany> See Sea kale, under Kale. Source: Websters Dictionary (01 Mar 1998) |
| sea calf | <zoology> The common seal. Source: Websters Dictionary (01 Mar 1998) |
| sea canary | <zoology> The beluga, or white whale. Origin: So called from a whistling sound which it makes. Source: Websters Dictionary (01 Mar 1998) |
| sea cat | <zoology> The wolf fish. Any marine siluroid fish, as aelurichthys marinus, and Arinus felis, of the eastern coast of the United States. Many species are found on the coasts of Central and South America. Source: Websters Dictionary (01 Mar 1998) |
| sea catfish | <zoology> The wolf fish. Any marine siluroid fish, as aelurichthys marinus, and Arinus felis, of the eastern coast of the United States. Many species are found on the coasts of Central and South America. Source: Websters Dictionary (01 Mar 1998) |
| sea chickweed | <botany> A fleshy plant (Arenaria peploides) growing in large tufts in the sands of the northern Atlantic seacoast. Synonym: sea sandwort, and sea purslane. Source: Websters Dictionary (01 Mar 1998) |
| sea clam | <zoology> Any one of the large bivalve mollusks found on the open seacoast, especially those of the family Mactridae, as the common American species. (Mactra, or Spisula, solidissima). Synonym: beach clam, and surf clam. Source: Websters Dictionary (01 Mar 1998) |
| sea cob | <zoology> The black-backed gull. Source: Websters Dictionary (01 Mar 1998) |
| sea cock | 1. In a steamship, a cock or valve close to the vessel's side, for closing a pipe which communicates with the sea. 2. <zoology> The black-bellied plover. A gurnard, as the European red gurnard (Trigla pini). Source: Websters Dictionary (01 Mar 1998) |