Definitions
1.nounA little spike; a spikelet.
2.nounA pointed fleshy appendage.
3.nounA thrusting javelin used by Romans that replaced the pilum in the late 3rd century.
4.nounA sharp, pointed crystal, especially of ice.
5.nounA sharp, needle-like structure, especially those making up the skeleton of a sponge.
6.nounA small radial emission of gas seen in the chromosphere and corona of the sun.