| sickle cell prep | <haematology, investigation> A test which looks at red blood cells under the microscope to detect sickle cells after an agent which lowers the oxygen content of the sample is added. A positive test is result is determined by the presence of sickle cells. Abnormal results indicate sickle cell anaemia or sickle cell trait. (27 Sep 1997) |
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| tray | Origin: OE. Treye, AS. Treg. Cf. Trough. 1. A small trough or wooden vessel, sometimes scooped out of a block of wood, for various domestic uses, as in making bread, chopping meat, etc. 2. A flat, broad vessel on which dishes, glasses, etc, are carried; a waiter; a salver. 3. A shallow box, generally without a top, often used within a chest, trunk, box, etc, as a removable receptacle for small or light articles. Source: Websters Dictionary (01 Mar 1998) |