e·vap·o·rate (?-v?p??-r?t?)v. e·vap·o·rat·ed, e·vap·o·rat·ing, e·vap·o·rates v.tr.1. a. To convert or change into a vapor.b. To draw off in the form of vapor.2. To draw moisture from, as by heating, leaving only the dry solid portion.3. To deposit (a metal) on a substrate by vacuum sublimation.v.intr.1. a. To change into vapor.b. To pass off in or as vapor.2. To produce vapor.3. To disappear; vanish: Our fears at last evaporated. See Synonyms at disappear.[Middle English evaporaten, from Latin ?vap?r?re, ?vap?r?t- : ?-, ex-, ex- + vapor, steam.]e·vap?o·ra?tion n.e·vap?o·ra?tive adj.e·vap?o·ra?tive·ly adv.e·vap?o·ra·tiv?i·ty (-?r?-t?v??-t?) n.e·vap?o·ra?tor n.American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.evaporationOn the left is a beaker filled with cool water. On the right, as the water is heated, molecules in the liquid vibrate and move apart. Molecules on the surface of the liquid will escape as vapor.e·vap·o·ra·tion (?-v?p??-r??sh?n) The change of a liquid into a vapor at a temperature below the boiling point.The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.evaporation1. The process in which a liquid changes state to vapor. It can occur at any temperature up to the boiling point of the liquid.2. Conversion of a liquid to a vapor, below its boiling point.Dictionary of Unfamiliar Words by Diagram Group Copyright © 2008 by Diagram Visual Information Limited