plural of ground loop

Third-person singular simple present indicative form of ground loop

(electricity) A (usually unwanted) current that flows between two points that are meant to be at the same potential, but are not.

(aviation) To suffer a ground loop manoeuvre.

plural of ground squirrel

Electric power supplied from the ground to an aircraft while it is on the ground. / Electric power supplied from the shore to a ship or boat while it is lying at berth. / (military) Ground forces.

plural of ground bass

Information acquired by direct observation rather than by inference.

To gather information by direct observation rather than inference.

simple past tense and past participle of grind down