2 definitions
for Doliolum
From The Collaborative International Dictionary of English v.0.48 :
Doliolum \Do*li"o*lum\, n. [L. doliolum a small cask.] (Zool.)
A genus of freeswimming oceanic tunicates, allied to Salpa,
and having alternate generations.
[1913 Webster]
From WordNet (r) 2.0 :
doliolum
n : free-swimming oceanic tunicate with a barrel-shaped
transparent body