Long-Evans rat

noun

An outbred rat used in medical research, white with a black or brown hood.

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Meanings

nounLong-Evans rat (plural Long-Evans rats)

plural Long-Evans rats

  1. An outbred rat used in medical research, white with a black or brown hood.

Origin

Developed by Drs. Long and Evans in 1915 by crossing Wistar females with a wild gray male.

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Cite this entry
APA

Long-Evans rat. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/Long-Evans%20rat

MLA

“Long-Evans rat.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/Long-Evans%20rat. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “Long-Evans rat,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/Long-Evans%20rat.

Source: Long-Evans rat on Wiktionary, CC BY-SA 4.0.