MacConkey agar

noun

A culture medium designed to grow gram-negative bacteria and differentiate them for lactose fermentation.

Meanings

nounMacConkey agar (countable and uncountable, plural MacConkey agars)

plural MacConkey agars

  1. countableuncountableA culture medium designed to grow gram-negative bacteria and differentiate them for lactose fermentation.

Origin

The medium was developed by the bacteriologist Alfred Theodore MacConkey.

Full word history & related roots →
Cite this entry
APA

MacConkey agar. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/MacConkey%20agar

MLA

“MacConkey agar.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/MacConkey%20agar. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “MacConkey agar,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/MacConkey%20agar.

Source: MacConkey agar on Wiktionary, CC BY-SA 4.0.