1. a statue consisting of a squared stone pillar with a carved head (usually a bearded Hermes) on top; used in ancient Greece as a boundary marker or signpost;
WordNet (r) 3.0 (2006):
herm
n 1: a statue consisting of a squared stone pillar with a carved
head (usually a bearded Hermes) on top; used in ancient
Greece as a boundary marker or signpost