Hovering and Circularly
(p.pr.&vb.n.) of Hover.
Webster's Revised Unabridged Dictionary
(DoD) A self-sustaining maneuver whereby a fixed, or nearly fixed, position is maintained relative to a spot on the surface of the Earth or underwater.
Department of Defense Dictionary of Military and Associated Terms. 31 January 2011.
adverb
- In a circular manner. .
WordNet 3.0 © 2006 by Princeton University
(adv.) In a circular manner.
Webster's Revised Unabridged Dictionary