Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun A pure form of nitrocellulose in which specimens for microscopic examination are embedded.

from The Century Dictionary.

  • noun A pure form of pyroxylin (guncotton). Dissolved in ether and absolute alcohol in varying proportions, it is extensively used in the histological laboratory for the purpose of embedding tissues for sectioning.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun biology A semisolid solution of pyroxylin in ether and alcohol. Used to embed specimens for microscopy before they are sectioned and placed on slides.
  • noun A specimen embedded in celloidin.

Etymologies

from The American Heritage® Dictionary of the English Language, 4th Edition

[cell(ulose) + –oid + –in.]

from Wiktionary, Creative Commons Attribution/Share-Alike License

From cellulose + -oid + -in

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