a. (Bot.) Relating to a plumule. [ 1913 Webster ]
‖n.; pl. L. Plumularlæ E. Plumularias [ NL. ] (Zool.) Any hydroid belonging to Plumularia and other genera of the family Plumularidæ. They generally grow in plumelike forms. [ 1913 Webster ]
n. (Zool.) Any Plumularia. Also used adjectively. [ 1913 Webster ]