(1):

(v. t.) To subject to the operation of integration; to find the integral of.

(2):

(v. t.) To indicate the whole of; to give the sum or total of; as, an integrating anemometer, one that indicates or registers the entire action of the wind in a given time.

(3):

(v. t.) To form into one whole; to make entire; to complete; to renew; to restore; to perfect.