celloidin

From cellulose + -oid + -in.

celloidin (plural celloidins)

1. (biology) A semisolid solution of pyroxylin in ether and alcohol. Used to embed specimens for microscopy before they are sectioned and placed on slides.
   • 1950, John Randal Baker, Cytological Technique‎, page 123:

     The celloidin will gradually change into a soft gel.

2. A specimen embedded in celloidin.
   • 2006, Dolores Landy Bentham, “Fresh Air”, in Janet Weinberg, editor, Still Going Strong‎, →ISBN, page 254:

     I will not cut the celloidins or check the bibliography for his book.

• celloid
• celluloid

• collodion
• colloidin

• collidine, decillion