Boat shell
- A marine univalve shell of the genus Cymba.
- A marine gastropod of the genus Crepidula. The species are numerous. It is so named from its form and interior deck.
The word meanings were obtained from OPTED(The Online Plain Text English Dictionary), which is based on “The Project Gutenberg Etext of Webster’s Unabridged Dictionary” which is in turn based on the 1913 US Webster’s Unabridged Dictionary (See Project Gutenburg), as a text file.