fixative

• 指用于固定、保存或稳定材料的物质，例如用于固定生物组织以便显微镜检查的固定剂，或涂在艺术品表面以防止涂抹的定画液。

A noun referring to a substance used to preserve or stabilize materials, such as a compound for fixing biological tissues for microscopic examination or a varnish applied to artwork to prevent smudging.

1. Laboratory fixativeC1formalscientific

   A chemical compound, such as ethanol or formaldehyde, used to preserve and stabilize biological tissues and cells for microscopic examination.

   固定液（实验室用）

   • The lab technician applied a fixative to the tissue sample before staining.
   • Formaldehyde is a common fixative used in histology.
   • Proper use of a fixative prevents cellular degradation.

   同义词fixerfixing agent

2. Art fixativeB2formalart

   A varnish dissolved in alcohol that is sprayed over drawings or paintings to prevent smudging and protect the surface.

   定画液

   • She used a fixative to preserve her charcoal sketch.
   • The artist sprayed a thin layer of fixative over the pastel drawing.
   • A good fixative prevents the artwork from smudging over time.