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pteropod

[ter-uh-pod] /ˈtɛr əˌpɒd/
adjective
1.
belonging or pertaining to the Pteropoda, a group of mollusks having the lateral portions of the foot expanded into winglike lobes used in swimming.
noun
2.
a pteropod mollusk.
Origin
1825-1835
1825-35; < Neo-Latin Pteropoda (plural); see ptero-, -pod
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples for pteropod
  • Experiments show that pteropod shells grow more slowly in acidified seawater.
  • One type of free-swimming mollusk called a pteropod is eaten by organisms ranging in size from tiny krill to whales.
British Dictionary definitions for pteropod

pteropod

/ˈtɛrəˌpɒd/
noun
1.
any small marine gastropod mollusc of the group or order Pteropoda, in which the foot is expanded into two winglike lobes for swimming and the shell is absent or thin-walled Also called sea butterfly
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Encyclopedia Article for pteropod

small marine gastropods of the subclass Opisthobranchia having a pair of winglike flaps (parapodia) that are used for swimming. These gastropods were once grouped as the order Pteropoda. They live at or near the sea surface; most are less than 1 cm (0.4 inch) long.

Learn more about pteropod with a free trial on Britannica.com
Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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