51吃瓜 of the Day
turbidity
noun
the state or quality of being clouded or opaque, usually because of suspended matter or stirred-up sediment.
Why the Museum of Science chose turbidity
To find out, watch this video from science communicator Maynard Okereke, better known as the Hip Hop M.D.
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More about turbidity
Turbidity comes from Medieval Latin 迟耻谤产颈诲颈迟腻蝉, which is based on Latin turbidus, meaning 鈥渃onfused, troubled, murky.鈥� Turbidus comes from turba, 鈥渃rowd, turmoil,鈥� which is also the source of , , and . Turbidity was first recorded in English in the 1620s.
EXAMPLE OF TURBIDITY USED IN A SENTENCE
The turbidity of the muddy puddle only increased as a family of geese and goslings waddled through the water.
pasteurize
verb
to expose to an elevated temperature for a period sufficient to destroy certain microorganisms, without radically altering taste or quality.
More about pasteurize
Pasteurize is named for French chemist Louis Pasteur (1822鈥�95), who proved that germs such as bacteria were responsible for disease. The surname Pasteur means 鈥渟hepherd鈥� in French and comes from Latin 辫腻蝉肠别谤别 (stem 辫腻蝉迟-), 鈥渢o feed,鈥� which is the source of antipasto, pabulum, and pasture. Pasteurize was first recorded in English in the early 1880s.
EXAMPLE OF PASTEURIZE USED IN A SENTENCE
The beer and wine were pasteurized to reduce the risk of food-borne illness.
artiodactyl
adjective
having an even number of toes or digits on each foot.
More about artiodactyl
Artiodactyl is a compound of artio-, meaning 鈥渆ven number,鈥� and -dactyl, meaning 鈥渇inger, toe.鈥� Artio- comes from Ancient Greek 谩谤迟颈辞蝉, 鈥渆ven, fitting, perfect,鈥� while -dactyl comes from 诲谩办迟测濒辞蝉, which also referred to the fruit of the date palm tree. Artiodactyl was first recorded in English in the 1840s.
EXAMPLE OF ARTIODACTYL USED IN A SENTENCE
Among the zoo鈥檚 longtime residents were alpacas, giraffes, goats, and various other artiodactyl animals.