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Word of the Day Tuesday, June 9, 2026

monotreme

/ˈmɒnətrɪm/ noun · British & US
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What does monotreme mean?

noun

A mammal that lays eggs, such as the platypus or echidna. Monotremes are a group of egg-laying mammals that are found in Australia and New Guinea.

Example

"The platypus is a well-known example of a monotreme, a mammal that lays eggs instead of giving birth to live young."

Definition generated by AI and curated by RJS Tech Solutions LLP.

Synonyms for monotreme

Antonyms of monotreme

Rhymes with monotreme

Etymologically related