a spicule; esp., any of several spinelike organs found in lower animals, as the starfish
Origin of spiculumClassical Latin
A small needlelike structure, such as a copulatory organ in a nematode.
Origin of spiculumLatin spīculum, diminutive of spīca, point, ear of grain.
(plural spicula or spiculums)
- A thrusting javelin used by Romans that replaced the pilum in the late 3rd century.
- A sharp, pointed crystal, especially of ice.
- (zoology) A sharp, needle-like structure, especially those making up the skeleton of a sponge.
- (astronomy) A small radial emission of gas seen in the chromosphere and corona of the sun.
From Latin spīculum (“a little, sharp point”), from spīcum, alternative form of spīca (“point, spike”).