Pro-Avis

A form of Proavis — Any of various hypothetical extinct species or taxa that were coined in the early 20th century in an attempt to support and explain the hypothetical evolutionary steps and anatomical adaptations leading from non-avian theropod dinosaurs to birds.

OriginLatin avis →
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Meanings

nounPro-Avis (plural Pro-Aves)

plural Pro-Aves

  1. alternativeAlternative form of Proavis.

Origin

  1. Latinavis“bird”
  2. EnglishPro-Avis

From pro- + Latin avis (“bird”)

More words from Latin

Full word history & related roots →
Cite this entry
APA

Pro-Avis. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/Pro-Avis

MLA

“Pro-Avis.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/Pro-Avis. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “Pro-Avis,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/Pro-Avis.

Source: Pro-Avis on Wiktionary, CC BY-SA 4.0.