prototherian

[ proh-tuh-theer-ee-uhn ]
/ ˌproʊ təˈθɪər i ən /

adjective

belonging or pertaining to the group Prototheria, comprising the monotremes.

noun

a prototherian animal.

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Origin of prototherian

1880–85; <New Latin Prototheri(a) (<Greek prōto-proto- + thēría, plural of thēríon beast) + -an
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for prototherian

British Dictionary definitions for prototherian

prototherian
/ (ˌprəʊtəʊˈθɪərɪən) /

adjective

of, relating to, or belonging to the Prototheria, a subclass of mammals that includes the monotremes

noun

any prototherian mammal; a monotreme

Word Origin for prototherian

C19: New Latin, from proto- + Greek theria wild animals
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