Tight″en (?), v. t. [imp. & p. p.Tightened (?); p. pr. & vb. n.Tightening.] To draw tighter; to straiten; to make more close in any manner.
Just where I please, with tightened rein
I'll urge thee round the dusty plain. Fawkes.
Tightening pulley(Mach.), a pulley which rests, or is forced, against a driving belt to tighten it.