Definition of strain
- a high-yielding strain of winter wheat
- a strain of weakness in the family
I strained my back trying to lift the couch.
Too much computer work strains the eyes.
He strained a muscle in his leg.
His muscles strained under the heavy weight.
: to injure (a body part or muscle) by too much tension, use, or effort
: to try very hard to do or get something
: to be pulled or stretched in a forceful way
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