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Definition of prototherian - 2 dictionary results

pro⋅to⋅the⋅ri⋅an

[proh-tuh-theer-ee-uhn]
–adjective
1. belonging or pertaining to the group Prototheria, comprising the monotremes.
–noun
2. a prototherian animal.

Origin:
1880–85; < NL Prototheri(a) (< Gk prōto- proto- + thēría, pl. of thēríon beast) + -an
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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prototherian

noun
primitive oviparous mammals found only in Australia and Tasmania and New Guinea 
WordNet® 3.0, © 2006 by Princeton University.
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