platelet plateless • platelike · · · Info · Definitions · Synonyms · Characters · · platelet · · Text Latin · · Script 8 · · Length Definitions · · · (noun) tiny bits of protoplasm found in vertebrate blood; essential for blood clotting. Synonyms: blood platelet, thrombocyte. · · Noun Definition 1 Synonyms · · · blood platelet · · Synonym 1 thrombocyte · · Synonym 2 Characters · · a latin small letter a U+0061 e latin small letter e U+0065 l latin small letter l U+006C p latin small letter p U+0070 t latin small letter t U+0074