also: ボワンこてい
noun
Bouin fixation
A histological fixation method using Bouin's solution (picric acid, formalin, acetic acid). Used in medical and biological contexts.
組織をブアン固定してから染色を行った。
The tissue was stained after Bouin fixation.
Formalin fixation is a more common general-purpose fixation method, while Bouin fixation is often preferred for preserving delicate structures and for certain staining techniques.
From the French name 'Bouin' (after Pol Bouin) and 固定 (fixation). The variant ボワン reflects the French pronunciation.