Parker, George Howard (1864–1955), American zoologist. Parker was a member of Harvard's faculty in the zoological department for almost all of his long academic career.
Medical Dictionary
Parker's fluid
noun Par·ker's fluid \ˈpär-kərz-\
Medical Definition of PARKER'S FLUID
: a mixture of 100 parts 70 percent alcohol and one part formaldehyde used for hardening and preserving tissues for microscopic study
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