wing-stroke
Noun: A single complete movement of a wing, especially in flying birds or insects; the act of beating or striking with a wing.
- Primary meaning: The motion made by a wing during flight, typically consisting of a downward and upward stroke.
- Alternate spelling: "wing-beat" (more common in ornithology).
- (A single flap of its wings.)
- (The individual movement of a wing.)
- (A feeble attempt to move its wing.)
"Wing-stroke frequency": the number of wing-strokes per unit of time, used in studies of flight biomechanics.
- Dragonflies can achieve a wing-stroke frequency of up to 30 beats per second. (The rate of wing movement.)
"Downstroke vs. upstroke": the two phases of a wing-stroke.
- The downstroke provides the primary lift, while the upstroke is used for recovery. (The downward and upward parts of the motion.)
Wing-beat (n): a synonym for wing-stroke, more common in scientific contexts.
- The bird's wing-beat was steady and rhythmic. (The regular pattern of wing movement.)
Stroke (n): a single movement of a limb or wing.
- Each stroke of the eagle's wings propelled it forward. (A specific motion.)
Flap: a broad, swinging movement of a wing.
- The duck gave a single flap of its wings before landing. (A wing-stroke.)
Beat: a rhythmic movement, especially of wings.
- The insect's wing beat was almost imperceptible. (A regular wing-stroke.)
"A stroke of the wing": a poetic or literary phrase for a single wing movement.
- With a stroke of its wing, the swan lifted off the water. (A single wing-stroke.)
"Wing it": to improvise or do something without preparation (figurative, not directly related to wing-stroke).
- He had no script, so he had to wing it during the speech. (To act without a plan.)
The word is sometimes written as "wing stroke" (two words) or hyphenated as "wing-stroke." Both forms are acceptable, though the hyphenated form is more common in technical writing.