acetoorcein en · NOUN
Etymology
From aceto- + orcein.
Meanings
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(uncountable) A cytological stain made from orcein and acetic acid
For the preparation of the karyological slides of the polytene chromosomes, dissected salivary glands were stained in a 2% solution of acetoorcein.
2015, Ninel A. Petrova et al., “Karyotypical characteristics of two allopatric African populations of anhydrobiotic Polypedilum Kieffer, 1912 (Diptera, Chironomidae) originating from Nigeria and Malawi”, in Comparative Cytogenetics, volume 9, →DOI: