From the genus name.
psylla (plural psyllas)
(zoology) Any leaping plant louse of the genus Psylla, or family Psyllidae.
Source: Wiktionary
Psyl"la, n.; pl. Psyllæ. Etym: [NL., from Gr. (Zoöl.)
Definition: Any leaping plant louse of the genus Psylla, or family Psyllidæ.
Source: Webster’s Unabridged Dictionary 1913 Edition
23 November 2024
(adjective) concerned primarily with theories or hypotheses rather than practical considerations; “theoretical science”
Espresso is both a coffee beverage and a brewing method that originated in Italy. When making an espresso, a small amount of nearly boiling water under pressure forces through finely-ground coffee beans. It has more caffeine per unit volume than most coffee beverages. Its smaller serving size will take three shots to equal a mug of standard brewed coffee.
