bir-

prefix

A variant of bi- (“two”), used before a root beginning with a vowel (for example, aryl as in biraryl) to aid pronunciation.

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Meanings

prefix
  1. A variant of bi- (“two”), used before a root beginning with a vowel (for example, aryl as in biraryl) to aid pronunciation.

Origin

Variant of bi- (“two”).

Full word history & related roots →
Cite this entry
APA

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

MLA

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

Chicago

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

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