Sickle
71sickle cell disease — An inherited disease in which the red blood cells have an abnormal crescent shape, block small blood vessels, and do not last as long as normal red blood cells. Sickle cell disease is caused by a mutation (change) in one of the genes for… …
72sickle-shaped — adjective curved like a sickle a falcate leaf falcate claws the falcate moon • Syn: ↑falcate, ↑falciform • Similar to: ↑curved, ↑curving …
73sickle ham — noun : sickle hock • sickle hammed | ̷ ̷ ̷ ̷| ̷ ̷ adjective …
74sickle-hocked — adjective see sickle hock * * * /sik euhl hokt /, adj. Vet. Pathol. noting or pertaining to a condition of horses in which the hock, due to strained tendons and ligaments, is flexed so that the foot is abnormally bowed far under the body. Also… …
75sickle-billed hummer — Sicklebill Sic kle*bill , n. (Zo[ o]l.) (a) Any one of three species of humming birds of the genus {Eutoxeres}, native of Central and South America. They have a long and strongly curved bill. Called also the {sickle billed hummer}. (b) A curlew.… …
76sickle-cell trait — noun Date: 1928 an inherited usually asymptomatic blood condition in which some red blood cells tend to sickle but usually not enough to produce anemia and that occurs primarily in individuals of African, Mediterranean, or southwest Asian… …
77sickle-cell disease — noun see sickle cell anemia …
78sickle cell anaemia — Disease common in races of people from areas in which malaria is endemic. The cause is a point mutation in haemoglobin (valine instead of glutamic acid at position 6), and the altered haemoglobin (HbS) crystallises readily at low oxygen tension.… …
79sickle cell — Pathol. an abnormal red blood cell having an elongated, crescentlike shape due to the presence of an abnormal hemoglobin. [1925 30; so called from the fact that the cells are often sickle shaped] * * * …
80sickle cell trait — Pathol. the usually asymptomatic hereditary condition that occurs when a person inherits from only one parent the abnormal hemoglobin gene characteristic of sickle cell anemia. Also called sicklemia. [1925 30] * * * …
