The expression “coffee break” was first attested in 1952 in glossy magazine advertisements by the Pan-American Coffee Bureau.
NUCLEOPLASM
nucleoplasm, karyoplasm
(noun) the protoplasm that constitutes the nucleus of a cell
Source: WordNet® 3.1
Etymology
Noun
nucleoplasm (plural nucleoplasms)
The protoplasm of a cell nucleus.
Synonyms
• karyoplasm
• kytoplasma
Source: Wiktionary
Nu"cle*o*plasm, n. Etym: [Nucleus + -plasm.] (Biol.)
Definition: The matter composing the nucleus of a cell; the protoplasm of the nucleus; karyoplasma.
Source: Webster’s Unabridged Dictionary 1913 Edition
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12 June 2025
RAREFACTION
(noun) a decrease in the density of something; “a sound wave causes periodic rarefactions in its medium”
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