Simple Definition of plinth
: a block of stone or wood that is used as the base for a pillar, statue, etc.
Full Definition of plinth
1 a : the lowest member of a base : subbase b : a block upon which the moldings of an architrave or trim are stopped at the bottom
2 : a usually square block serving as a base; broadly : any of various bases or lower parts
3 : a course of stones forming a continuous foundation or base course
Origin of plinth
Latin plinthus, from Greek plinthos
First Known Use: 1601
Seen and Heard
What made you want to look up plinth? Please tell us where you read or heard it (including the quote, if possible).