Definition of motor-boating in US English:

motor-boating

noun

  • 1The action of driving or travelling in a motor boat, especially as a sport or leisure pursuit.

  • 2Electronics. Oscillation in an amplifier that is of such low frequency that individual cycles may be heard, giving a characteristic sound, and caused by feedback from the output to the input of earlier stages, often through a common voltage supply.

Origin

Early 20th century; earliest use found in The Oakland Tribune. From motor boat + -ing, after boating.

Pronunciation

motor-boating

/ˈməʊtəbəʊtɪŋ/