destain

Estimated CEFR level: C2 — Proficiency

Estimated from word frequency; not an official CEFR classification.

Definition

  1. verb remove stain from (a laboratory specimen) to enhance contrast

Etymology

From Old French destaindre (Modern French déteindre, Spanish desteñir). At some point possibly reanalysed as de-/dis- + stain (which is etymologically unrelated).

In classic literature

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