CORONIUM

Etymology

Noun

coronium (uncountable)

(chemical element, obsolete) A supposed chemical element, hypothesized in the 19th century in order to explain a green emission line seen during a solar eclipse (actually highly ionized iron).

Coordinate terms

• geocoronium

• nebulium

Source: Wiktionary


Co*ro"ni*um, n. [NL. See Corona.] (Chem. & Astron.)

Definition: The principal gaseous substance forming the solar corona, characterized by a green line in the coronal spectrum.

Source: Webster’s Unabridged Dictionary 1913 Edition



RESET




Word of the Day

4 April 2025

GUILLOTINE

(verb) kill by cutting the head off with a guillotine; “The French guillotined many Vietnamese while they occupied the country”


coffee icon

Coffee Trivia

Decaffeinated coffee comes from a chemical process that takes out caffeine from the beans. Pharmaceutical and soda companies buy the extracted caffeine.

coffee icon