[pleyt-hohl-der] /ˈpleɪtˌhoʊl dər/
a lightproof container for a photographic , loaded into the camera with the and having a slide that is removed before exposing.
/ˈpleɪtˌleɪə/ noun 1. (Brit) a workman who lays and maintains railway track US and Canadian equivalent trackman
[pleyt] /pleɪt/ noun 1. a shallow, usually circular dish, often of earthenware or porcelain, from which food is eaten. 2. the contents of such a dish; plateful. 3. an entire course of a meal served on such a dish: I had the vegetable plate for lunch. 4. the food and service for one person, as […]
[pleyt-lit] /ˈpleɪt lɪt/ noun, Cell Biology. 1. a small platelike body, especially a . /ˈpleɪtlɪt/ noun 1. a minute cell occurring in the blood of vertebrates and involved in clotting of the blood Formerly called thrombocyte n. 1895, formed in English from plate + diminutive suffix -let. platelet plate·let (plāt’lĭt) n. A minute, irregularly shaped, […]
- Platelet-aggregating factor
platelet-aggregating factor n. Abbr. PAF A substance released from rabbit basophilic white blood cells that causes aggregation of platelets and is involved in the deposition of immune complexes. Also called platelet-activating factor.