Regaud fixative

Re·gaud fix·a·tive

(rĕ-gō'),
a fixative containing formaldehyde and sodium dichromate, used to preserve mitochondria but not fat; requires afterchroming and extensive washing.

Re·gaud fix·a·tive

(re-gō' fiks'ă-tiv)
A fixative containing formaldehyde and sodium dichromate, used to preserve mitochondria but not fat; requires afterchroming and extensive washing.

Regaud,

Claude, French radiologist, 1870-1940.
Regaud fixative - used to preserve mitochondria but not fat.
residual body of Regaud - the excess cytoplasm that separates from the spermatozoon during spermiogenesis.