I'm guessing you're asking "What is it called when every stroke in tennis has a sequence of movements?"
If that is the case my best guess would be that you're referring to the "pronation" that tennis players go through when hitting the ball (Especially during serves) It's the way your grip changes on impact. The thing about pronation though is that different people will say it has slightly different meanings ie: movements before hits, hand & thumb movement, wrist and forearm. Hope this helped :)
Source, My own tennis experience.
In a four-stroke engine its called the compression stroke
Its the one with movements that are rather frog like
1342 Intake Compression Power Exhaust
A faulty stroke is usually called a foul.
It is called the compression stroke.
The stroke known as "butterfly" is named for its resemblance to the fluttering motion of a butterfly's wings. Swimmers move their arms in a simultaneous, circular motion while performing a dolphin kick, mimicking the graceful movement of a butterfly in flight. The name captures both the visual aspect of the stroke and the fluidity of the movements involved.
Air and fuel intake, compression and ignition, combustion and expansion, exhaust
There is no song called the " Stroke "
The four-stroke cycle consists of four key parts: the intake stroke, compression stroke, power stroke, and exhaust stroke. During the intake stroke, the engine draws in air and fuel. The compression stroke follows, where the mixture is compressed to increase efficiency. In the power stroke, the compressed mixture is ignited, generating power, and finally, the exhaust stroke expels the burnt gases from the cylinder.
:L there is a stroke called butterfly
Yes, plastic surgery is to blame.
postictal