Search Result for "bubble shell":
Wordnet 3.0

NOUN (1)

1. marine gastropod mollusk having a very small thin shell; 



The Collaborative International Dictionary of English v.0.48:

Bubble shell \Bub"ble shell`\ (Zool.)
   A marine univalve shell of the genus Bulla and allied
   genera, belonging to the Tectibranchiata.
   [1913 Webster]


WordNet (r) 3.0 (2006):

bubble shell
    n 1: marine gastropod mollusk having a very small thin shell