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1. (n.) monotreme
any egg-laying mammal of the order Monotremata, comprising only the duckbill and the echidnas of Australia and New Guinea.
Etymology: (1825–35; < F monotrème < NL monotrematus=mono-mono - +-trematus -holed, adj. use of Gk trêma, s. trēmat- hole, perforation; see -ous)
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| Definition of 'monotreme' |
Princeton's WordNet |
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1. (noun) monotreme, egg-laying mammal
the most primitive mammals comprising the only extant members of the subclass Prototheria
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| Definition of 'monotreme' |
Webster Dictionary |
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1. (noun) monotreme
one of the Monotremata
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