| acicula | (n) a needlelike part or structure of a plant or animal or crystal; as a spine or bristle or crystal |
| aciculate | (adj) related to plants or animals or crystals having aciculae or needlelike parts |
| Acicula | ‖n.; |
| Acicular | a. Needle-shaped; slender like a needle or bristle, as some leaves or crystals; also, having sharp points like needles. [ 1913 Webster ] |
| Aciculated | |