sibling species

noun

A group of two or more species that are almost identical in physical appearance but are genetically distinct and reproductively isolated, and thus cannot successfully interbreed.

Ask AI about this wordChatGPTClaudePerplexityGoogle AIGrok

Meanings

nounsibling species pl (plural only)
  1. pluralplural onlybiologyA group of two or more species that are almost identical in physical appearance but are genetically distinct and reproductively isolated, and thus cannot successfully interbreed.
Cite this entry
APA

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

MLA

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

Chicago

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

Source: sibling species on Wiktionary, CC BY-SA 4.0.