spicule


spic·ule

noun \ˈspi-(ˌ)kyül\

Definition of SPICULE

1
:  a slender pointed usually hard body; especially :  one of the minute calcareous or siliceous bodies that support the tissue of various invertebrates (as sponges)
2
:  a spikelike short-lived prominence appearing close to the chromosphere of the solar atmosphere
spic·u·lar \ˈspi-kyə-lər\ adjective
spic·u·la·tion \ˌspi-kyə-ˈlā-shən\ noun

Origin of SPICULE

New Latin spicula & Latin spiculum; New Latin spicula, alteration of Latin spiculum head of a spear or arrow, diminutive of spicum, spica ear of grain
First Known Use: 1785

spic·ule

noun \ˈspik-(ˌ)yü(ə)l\   (Medical Dictionary)

Medical Definition of SPICULE

: a minute slender pointed usually hard body (as of bone)

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