(1):
(v. i.) To combine or unite (as two chemical substances) with or without separation of some unimportant side products.
(2):
(v. t.) To make more close, compact, or dense; to compress or concentrate into a smaller compass; to consolidate; to abridge; to epitomize.
(3):
(v. t.) To reduce into another and denser form, as by cold or pressure; as, to condense gas into a liquid form, or steam into water.
(4):
(v. i.) To become more compact; to be reduced into a denser form.
(5):
(v. i.) To undergo polymerization.
(6):
(a.) Condensed; compact; dense.