straininggerund / present participle Used attributively to describe something that is exerting effort or under tension.
Definitions
Exerting effort, force, or tension; under strain. A straining rope threatened to snap.
straingerund / present participle Derived from the present participle, used before a noun to denote something that is applying force or effort.
Definitions
Applying continuous force or effort; exerting pressure. The straining engine emitted a high-pitched whine.