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pulmonate

 - 3 dictionary results

pul⋅mo⋅nate

  [puhl-muh-neyt, -nit, pool-]
Use pulmonate in a Sentence
–adjective
1. Zoology. having lungs or lunglike organs.
2. belonging to the Pulmonata, an order of gastropod mollusks usually breathing by means of a lunglike sac, and including most of the terrestrial snails and the slugs and certain aquatic snails.
–noun
3. a pulmonate gastropod.
Origin:
1835–45; < NL pulmōnātus. See pulmonary, -ate 1
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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pul·mo·nate   (pŏŏl'mə-nāt', pŭl'-)   
adj.  

  1. Having lungs or lunglike organs.

  2. Of or belonging to the Pulmonata, a subclass of gastropods including terrestrial snails and slugs and certain freshwater snails that are capable of breathing air through lunglike sacs.

n.  A gastropod of the subclass Pulmonata.

[From Latin pulmō, pulmōn-, lung; see pulmonary.]
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Encyclopedia

pulmonate

(subclass Pulmonata), any of various land and freshwater (a few marine) snails, class Gastropoda, that breathe by means of a "lung"-a saclike modification of the mantle cavity. The slugs lack an external shell, but most pulmonates have a spiral shell that may be attenuated or flattened. They are anatomically more advanced than other snails: all are detorted (bilaterally symmetrical, with an unlooped nerve cord) as adults, and the auricle of the heart is anterior to the ventricle. All are hermaphroditic-i.e., with both male and female reproductive organs in one animal.

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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