drilled pile
augered pile
A concrete pile which is cast-in-place in a hole drilled by an auger; may be belled at the bottom; suitable in dry soil.
drilled pier, drilled pile
A concrete pier or pile that is cast in place in a hole that has been bored in soil or rock.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.