D defs.my
Entry 1 sense Webster, 1913

Rostrulum

/(-trụ*lŭm)/ · Ros·tru·lum · IPA
01 n. A little rostrum, or beak, as of an insect.
pl. Rostrula ((#))
  1. 1.
    A little rostrum, or beak, as of an insect.