protomammal

P3R1O1T1O1M3A1M3M3A1L1

noun

Any evolutionary ancestor of the mammals.

Similar
therapsid
OriginEnglish mammal ← Ancient Greek πρωτο- (prōto-) ← Proto-Indo-European *pró →
Scrabble 19
Ask AI about this wordChatGPTClaudePerplexityGoogle AIGrok

Meanings

nounprotomammal (plural protomammals)

plural protomammals

  1. Any evolutionary ancestor of the mammals.

Synonyms & antonyms

nounprobably warm-blooded; considered direct ancestor of mammals

Similar
therapsid
Broader
synapsidsynapsid reptile
Also see
therapsid

Synonym sets from Open English WordNet, CC BY 4.0.

Origin

  1. Proto-Indo-European*per-der.?
  2. Proto-Indo-European*pér
  3. Proto-Indo-European*pró
  4. Ancient Greekπρό (pró)
  5. Ancient Greekπρῶτος (prôtos)
  6. Ancient Greekπρωτο- (prōto-)
  7. Englishproto-
  8. Englishmammal
  9. Englishprotomammal

From proto- + mammal.

Full word history & related roots →
Cite this entry
APA

protomammal. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/protomammal

MLA

“protomammal.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/protomammal. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “protomammal,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/protomammal.

Source: protomammal on Wiktionary, CC BY-SA 4.0.