Law a written agreement or something of value put in the care of a third party and not delivered until certain conditions are fulfilled
See escrow in American Heritage Dictionary 4
(ĕsˈkrōˌ, ĕ-skrōˈ)
noun
Money, property, a deed, or a bond put into the custody of a third party for delivery to a grantee only after the fulfillment of the conditions specified.