Fixative

What Kind of Doctor Do I Need? Slideshow

Medical Definition of Fixative

Fixative: A medium such as a solution or spray that preserves specimens of tissues or cells. Most biopsies and specimens removed at surgery are fixed in a solution such as formalin (dilute formaldehyde) before further processing takes place. Other common ingredients used in fixatives are alcohol, mercuric chloride, potassium dichromate and sodium sulfate.

"Fixative" is derived from the Latin "figere" (to fix, fasten, make stable). Related English words include "fixture" (that which remains stable and in place) and "fixity" (state of being stable, steady, permanent).


Subscribe to MedicineNet's General Health Newsletter

By clicking Submit, I agree to the MedicineNet's Terms & Conditions & Privacy Policy and understand that I may opt out of MedicineNet's subscriptions at any time.

Reviewed on 6/9/2016

Health Solutions From Our Sponsors