/ Dictionary / Index V vertical: Meaning and Definition of Find definitions for: ver•ti•cal Pronunciation: (vûr'ti-kul), [key] — adj. being in a position or direction perpendicular to the plane of the horizon; upright; plumb. of, pertaining to, or situated at the vertex. of or pertaining to the cranial vertex. (of a leaf&hasp;) having the blade in a perpendicular plane, so that neither of the surfaces can be called upper or lower. being in the same direction as the axis; lengthwise. of, constituting, or resulting in vertical combination. of or pertaining to a product or service from initial planning to sale. of, pertaining to, or noting a stratified society, nation, etc. —n. something vertical, as a line or plane. a vertical or upright position. a vertical structural member in a truss. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: vertical (Thesaurus) vertex vertical angle Related Content Daily Word Quiz: placid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language