hopping

noun

1. (Britain) hop picking, the practice of picking hops; for Londoners a holiday period working in the hop gardens of Kent.

2. The addition of hops during the production of beer as a flavouring agent

3. The act of one who, or that which, hops; a jumping, frisking, or dancing.

4. (countable, physics) A shift from one energy-state to another by an electron in an atom.

verb

1. present participle of hop