jetting

verb

1. (form-of, gerund, participle, present)present participle and gerund of jet

noun

1. (countable, uncountable)The application of a jet of liquid, especially to treat livestock against pests.

   “In bad fly years more than five jettings may be needed. But whatever the conditions, except for rare waves of body-strike, while flies are active station labour can control them by working at jetting for about ten days per month.”