fixative

• اسم يدل على مادة تُستخدم لحفظ المواد أو تثبيتها، مثل محلول يثبّت الأنسجة الحيوية للفحص المجهري، أو ورنيش يُطلى به العمل الفني لمنع تشويهه أو زوال ألوانه.

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.

   مثبّت (مختبري)

   • 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.

   المرادفاتfixerfixing agent

2. Art fixativeB2formalart

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

   مثبّت

   • 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.