spicule
noun
High School
1
A sharp, needle-like piece.
2
A tiny glass flake formed during the manufacture of glass vials.
3
Any of many needle-like crystalline structures that provide skeletal support in marine invertebrates like sponges.
4
A needle-like mating structure found only in male nematodes.
5
A jet of matter ejected from the photosphere of the sun.
6
A small spike of flowers.
7
A unit of mass equal to 125 pounds.