Janus green

noun

: a basic azine dye used especially as a vital biological stain (as for mitochondria)

Word History

Etymology

probably from Janus, a trademark

First Known Use

1898, in the meaning defined above

Time Traveler
The first known use of Janus green was in 1898

Rhymes for Janus green

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Browse Nearby Words

Janus-faced
Janus green
Januslike
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Cite this Entry

“Janus green.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Janus%20green. Accessed 26 Mar. 2025.

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Medical Definition

Janus green

noun
Ja·​nus green ˈjā-nəs-ˈgrēn How to pronounce Janus green (audio)
: a basic azine dye used especially as a biological stain (as for mitochondria)
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