Spicule
Part of speech: noun
Definition: A sharp, needle-like piece Any of many needle-like crystalline structures that provide skeletal support in marine invertebrates like sponges A jet of matter ejected from the photosphere of the sun A small spike of flowers
Spiculum
Part of speech: noun
Definition: A sharp, pointed crystal, especially of ice.A sharp, needle-like structure, especially those making up the skeleton of a sponge.A small radial emission of gas seen in the chromosphere and corona of the sun.