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Meaning of pteropod

pter•o•pod

Pronunciation: (ter'u-pod"), [key]
— adj.
  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.
—n.
  1. a pteropod mollusk.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.