PERIOSTRACUM

Etymology

Noun

periostracum (plural periostraca)

(malacology) The proteinaceous outer sheath of many molluscan shells.

Source: Wiktionary


Per`i*os"tra*cum, n.; pl. Periostraca. Etym: [NL., fr. Gr. (Zoöl.)

Definition: A chitinous membrane covering the exterior of many shells; -- called also epidermis.

Source: Webster’s Unabridged Dictionary 1913 Edition



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Word of the Day

20 April 2025

SALAD

(noun) food mixtures either arranged on a plate or tossed and served with a moist dressing; usually consisting of or including greens


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Coffee Trivia

According to Guinness World Records, the largest coffee shop is the Al Masaa Café, which has 1,050 seats. The coffee shop was inaugurated in Riyadh, Saudi Arabia, on 13 August 2014.

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