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{%type%} Definitions

WordNet 3.0Copyright Princeton University


Short "hint"

n. - Echidnas.

Usage examples (5)
  • Monotremes are sometimes called Prototheria, in contrast with Metatheria (marsupials) and Eutheria (placental mammals).
  • In the earliest stage represented by the Monotremata or Prototheria, there was no intra-uterine development.
  • If these bodies are formed only in Mammals which have uterine gestation, and not in Prototheria, they cannot be the only essential source of the hormone which stimulates...
  • Prototheria, 142 for more
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