PLEUROSIGMA

Pleu`ro*sig"ma, n. Etym: [NL. See Pleuro-, and Sigma.] (Bot.)

Definition: A genus of diatoms of elongated elliptical shape, but having the sides slightly curved in the form of a letter S. Pleurosigma angulatum has very fine striations, and is a favorite object for testing the high powers of microscopes.

Source: Webster’s Unabridged Dictionary 1913 Edition



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Word of the Day

18 March 2025

ODONTOGLOSSUM

(noun) any of numerous and diverse orchids of the genus Odontoglossum having racemes of few to many showy usually large flowers in many colors


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Coffee Trivia

Some 16th-century Italian clergymen tried to ban coffee because they believed it to be “satanic.” However, Pope Clement VII loved coffee so much that he lifted the ban and had coffee baptized in 1600.

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