| Platel | n. [ OF. See Plateau. ] A small dish. [ 1913 Webster ] |
| platelayer | (n) a workman who lays and repairs railroad tracks, Syn. tracklayer |
| platelet | (n) tiny bits of protoplasm found in vertebrate blood; essential for blood clotting, Syn. thrombocyte, blood platelet |
| plateletpheresis | (n) platelets are separated from whole blood and the rest is returned to the donor |