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molasses

(Encyclopedia)molasses, sugar byproduct, the brownish liquid residue left after heat crystallization of sucrose (commercial sugar) in the process of refining. Molasses contains chiefly the uncrystallizable sugars a...

life preserver

(Encyclopedia)life preserver, a personal flotation device (PFD) intended to keep the wearer afloat, particularly in case of shipwreck. A Type I PFD will keep even unconscious people afloat in a face–up position; ...

Birkhoff, Garrett

(Encyclopedia)Birkhoff, Garrett gârˈət bûrˈkôf [key], 1911–96, American mathematician, b. Princeton, N.J.; son of George David Birkhoff. He was educated at Harvard (B.A., 1932) where he was elected a fellow...

Beaumont

(Encyclopedia)Beaumont, city (2020 pop. 115,282), seat of Jefferson co., Tex., on the Sabine-Neches Waterway; inc. 1838. A ship channel provides the facilities of a m...

gneiss

(Encyclopedia)gneiss nīs [key], coarse-grained, imperfectly foliated, or layered, metamorphic rock. Gneiss is characterized by alternating light and dark bands differing in mineral composition and having coarser g...

periscope

(Encyclopedia)periscope pĕrˈĭskōp [key] [Gr.,=view around], instrument to enable a person to see objects not in his direct line of vision or concealed by some intervening body. Its essential parts are a tube, p...

endorphins

(Encyclopedia)endorphins ĕndôrˈfĭnz [key], neurotransmitters found in the brain that have pain-relieving properties similar to morphine. There are three major types of endorphins: beta endorpins, found primaril...

Chauvin, Yves

(Encyclopedia)Chauvin, Yves, 1930–2015, French chemist, b. Menen, Belgium, grad. Lyon School of Chemistry, Physics, and Electronics (CPE), 1954. Chauvin was a research engineer (1960–91) and then research direc...

blood substitute

(Encyclopedia)blood substitute, substance that mimics the function of blood. Blood substitutes typically concentrate only on reproducing the function of hemoglobin, the molecule that carries oxygen through the body...

Helms, Richard McGarrah

(Encyclopedia)Helms, Richard McGarrah, 1913–2002, U.S. government official, b. St. Davids, Pa. In 1942, Helms joined the U.S. navy where he engaged in intelligence work for the Office of Strategic Services (OSS)....
 

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