Definition of apetalous in English:

apetalous

Syllabification: a·pet·al·ous
Pronunciation: /āˈpetl-əs
 
/

adjective

Botany
  • (Of a flower) having no petals.
    More example sentences
    • The flower is apetalous with deciduous sepals.
    • Morphological characters include leaves that are not gland-dotted, persistent intrapetiolar stipules, some apetalous species, and a reduction in stamen number in several species.
    • Flowers are small, with white petals up to 2.5 mm or often apetalous, and last only a short time.

Origin

early 18th century: from modern Latin apetalus, from Greek apetalos 'leafless' (from a- 'without' + petalon 'leaf') + -ous.

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Pronunciation: ˌkɒlərəˈtjʊərə
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elaborate ornamentation of a vocal melody