gathered together or made less diffuse; "their concentrated efforts"; "his concentrated attention"; "concentrated study"; "a narrow thread of concentrated ore"
of or relating to a solution whose dilution has been reduced
intensely focused; "her concentrated passion held them at bay"
a coupling that connects or disconnects driving and driven parts of a driving mechanism; "this year's model has an improved clutch"
a pedal or lever that engages or disengages a rotating shaft and a driving mechanism; "he smoothely released the clutch with one foot and stepped on the gas with the other"
a number of birds hatched at the same time
a tense critical situation; "he is a good man in the clutch"
marked by keen caution and watchful prudence; "they were wary in their movements"; "a wary glance at the black clouds"; "taught to be wary of strangers"