• Webster's Revised Unabridged Dictionary
    • n Pteropod (Zoöl) One of the Pteropoda.
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Century Dictionary and Cyclopedia
    • pteropod Having an alate podium, or winglike expansions of the foot, as a mollusk; of or pertaining to the Pteropoda. Also pteropodous.
    • n pteropod A mollusk of the class Pteropoda. The shell-bearing pteropods are the Thecosomata; the naked pteropods are the Gymnsomata; spiny pteropods belong to the family Cavoliniidæ, and spiral pteropods to the Limacinidæ; slipper-pteropods are Cymbuliidæ. Also pteropode.
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Chambers's Twentieth Century Dictionary
    • n Pteropod ter′ō-pod one of a class of molluscs which move about by means of wing-like appendages attached to the sides of the head, which are not, however, homologous to the foot of other molluscs
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Webster's Revised Unabridged Dictionary
Gr. wing-footed; a feather, wing + , , foot: cf. F. ptéropode,
Chambers's Twentieth Century Dictionary
Gr. pteron, wing, pous, podos, foot.


In literature:

And what are Pteropods?
"Madam How and Lady Why or, First Lessons in Earth Lore for Children" by Charles Kingsley
A genus of Pteropods.
"More Letters of Charles Darwin" by Charles Darwin
In the calm weather, abundant "worms" freely swimming, jelly-fish, pteropods and small fish were observed.
"The Home of the Blizzard" by Douglas Mawson
Animal unknown, but certainly floating, and probably pteropodous.
"Voyage Of H.M.S. Rattlesnake, Vol. 2 (of 2)" by John MacGillivray
An extinct genus of Pteropods.
"The Ancient Life History of the Earth" by Henry Alleyne Nicholson
The Pteropods and the sponge are very similar to forms now living.
"The Chain of Life in Geological Time" by Sir J. William Dawson
With the Pteropods, transparent forms found swimming over the surface of the deep sea, the reader is not likely to have much to do.
"Stories of the Universe: Animal Life" by B. Lindsay
Pteropods, a suborder of the gastropods, appeared in this age.
"The Elements of Geology" by William Harmon Norton

In news:

Acidification could affect the tiny pteropod, also known as a sea butterfly or swimming sea snail.
Once absorbed in seawater, carbon dioxide forms carbonic acid and lowers ocean pH, making it harder for corals, plankton and tiny marine snails (called pteropods) to form their body parts.
The pteropod (marine snail) inhabit the top 200 m of oceanic waters.