Definition of mountain gem in English:

mountain gem

Line breaks: moun|tain gem

noun

  • A green hummingbird found in the upland forests of Central America.
    • Genus Lampornis, family Trochilidae: several species

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Word of the day astrogation
Pronunciation: ˌastrə(ʊ)ˈgeɪʃ(ə)n
noun
(in science fiction) navigation in outer space