primitive streak

noun

A formation that occurs during the initial phases of embryonic development in birds, reptiles and mammals.

Ask AI about this wordChatGPTClaudePerplexityGoogle AIGrok

Meanings

nounprimitive streak (plural primitive streaks)

plural primitive streaks

  1. embryologyA formation that occurs during the initial phases of embryonic development in birds, reptiles and mammals.
Cite this entry
APA

primitive streak. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/primitive%20streak

MLA

“primitive streak.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/primitive%20streak. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “primitive streak,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/primitive%20streak.

Source: primitive streak on Wiktionary, CC BY-SA 4.0.