spicula spicousness • spiculae · · · Info · Definitions · Synonyms · Characters · · spicula · · Text Latin · · Script 7 · · Length 3 · · Syllables Definitions · · · (noun) small pointed structure serving as a skeletal element in various marine and freshwater invertebrates e.g. sponges and corals. Synonyms: spicule, spiculum. · · Noun Definition 1 Synonyms · · · spicule · · Synonym 1 spiculum · · Synonym 2 Characters · · a latin small letter a U+0061 c latin small letter c U+0063 i latin small letter i U+0069 l latin small letter l U+006C p latin small letter p U+0070 s latin small letter s U+0073 u latin small letter u U+0075