from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A marine organism, Porpita porpita, the blue button.
from the GNU version of the Collaborative International Dictionary of English
- n. A genus of bright-colored Siphonophora found floating in the warmer parts of the ocean. The individuals are round and disk-shaped, with a large zooid in the center of the under side, surrounded by smaller nutritive and reproductive zooids, and by slender dactylozooids near the margin. The disk contains a central float, or pneumatocyst.
from The Century Dictionary and Cyclopedia
- n. The typical genus of the family Porpitidæ.
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