-t( ə )nə(r) noun
( -s )
: one that tightens ; often : an idle pulley or a sprocket wheel pressed against a belt, band, rope, or chain to tighten it — called also tightening pulley
-t( ə )nə(r) noun
( -s )
: one that tightens ; often : an idle pulley or a sprocket wheel pressed against a belt, band, rope, or chain to tighten it — called also tightening pulley
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012