very busy or active
very agitatedly or violently: chiefly in the phrase hopping mad, extremely angry
Alternative spelling (C17) of hoppe, from Middle French houbelon
- Present participle of hop.
- The act of one who, or that which, hops; a jumping, frisking, or dancing.
- (countable, physics) A shift from one energy-state to another by an electron in an atom.