hoist tower[′hȯist ‚tau̇·ər]
A temporary shaft of scaffolding used to hoist materials for building construction.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
In building erection, a temporary (sometimes portable) structure that provides guideways for a platform that lifts materials to upper stories.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.