Meaning of STRAIN in English
( n. )
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; also, a course of action or conduct; as, he spoke in a noble strain; there was a strain of woe in his story; a strain of trickery appears in his career.
Webster's Revised Unabridged English Dictionary. Пересмотренный полный словарь английского языка Webster. 2012