aceto-orcein

noun

ace·​to-or·​ce·​in ˌa-sə-tō-ˈȯr-sē-ən 

ə-ˌsē-tō-

: a biological stain consisting of orcein in solution with acetic acid

Root tips were obtained and stained with aceto-orcein, and root tip squashes were performed.

—A. Lane Rayburn et al., Crop Science, 27 Oct. 2005

Word History

Etymology

aceto- + orcein

First Known Use

1949, in the meaning defined above

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