(literary) Any sustained note or movement; a song; a distinct portion of an ode or other poem; also, the pervading note, or burden, of a song, poem, oration, book, etc.; theme; motive; manner; style
(biology) A particular breed or race of animal, microbe etc.
(music) A portion of music divided off by a double bar; a complete musical period or sentence; a movement, or any rounded subdivision of a movement.
“A muscle strain occurs from overexertion and may result in a stretch or tear of the muscle fibers.”
“Electronic equipment must be designed to withstand the physical strain of centrifugal force.”
“The vast majority are well adapted to civil life but capable only to a limited degree of enduring the strain of warfare.”
strainer
A device through which a liquid is passed for purification, filtering or separation from solid matter; anything (including a screen or a cloth) used to strain a liquid
a perforated screen or openwork (usually at the end of a suction pipe of a pump), used to prevent solid bodies from mixing in a liquid stream or flowline.
“It is understood that Surrey could, if they continue to drag their feet, leave themselves open to legal action on the basis of a 're straint of trade.”
“Commonly used testosterone medications include Androgel, Depo-Testosterone, Axiron, Testim, Androderm, Fortesta, Delatestryl, Methiest, Testred, Android and Straint.”