aciculum
noun
A slender spine, prickle, or other needle-like structure; (in polychaete annelids) a chitinous rod forming an internal support for a parapodium.
noun
A slender spine, prickle, or other needle-like structure; (in polychaete annelids) a chitinous rod forming an internal support for a parapodium.
Begin a journey through worlds of puzzles.