Crossword puzzle clue "regular vibration"

to expand and contract rhythmically, also PULSATE

to wet slightly

a thing that dampens; (US) a contrivance for moistening linen etc.

(Australian slang) a simple kind of unleavened cake or bread made of flour and water and baked in hot ashes

to move in quick motions, also FLITTER

to vibrate, shudder esp. of a machine

a swollen enlargement