THULIUMS

THULIUM

Thu"li*um, n. Etym: [NL. See Thule.] (Chem.)

Definition: A rare metallic element of uncertain properties and identity, said to have been found in the mineral gadolinite.

Source: Webster’s Unabridged Dictionary 1913 Edition

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2 April 2025

(adjective) secret or hidden; not openly practiced or engaged in or shown or avowed; “covert actions by the CIA”; “covert funding for the rebels”

The expression “coffee break” was first attested in 1952 in glossy magazine advertisements by the Pan-American Coffee Bureau.