收缩

收缩	shōu suō	to pull back / to shrink / to contract / (physiology) systole
收	shōu	to receive / to accept / to collect / to put away / to restrain / to stop / in care of (used on address line after name)
缩	suō	to withdraw / to pull back / to contract / to shrink / to reduce / abbreviation / also pr. [su4]