🇵🇹Portuguese Source WordCode: PT

heterocerco

Pronunciation / Transliteration: eteɾoˈsɛɾku

🇬🇧 Direct English Meaning:
Heterocercal/ˌhɛt.ə.roʊˈsɜːr.kəl/
adjectiveCEFR C2 (Proficient)Top #45000 frequency
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🇵🇹 Example Sentence in Portuguese:

"A nadadeira caudal do tubarão é heterocerca."

Comprehensive Definitions & Senses

1 sense
As adjective
  1. 1

    Having unequal upper and lower lobes, usually with the vertebral column curving into the upper lobe (as in sharks).

    "The fossilized shark possessed a distinct heterocercal tail that provided significant upward lift while swimming."

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Antonyms & Contrasting Words (2)

Linguistic Origin & Historical Etymology

Derived from the Greek words 'hetero-', meaning 'different' or 'other', and 'kerkos', meaning 'tail'. It entered scientific English in the mid-19th century to describe the asymmetrical tail structures observed in early and cartilaginous fishes.

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