Main Entry: boul·der

Variant(s): also bowl·der \ˈbōl-dər\

Function: noun

Etymology: short for boulder stone, from Middle English bulder ston, part translation of a word of Scandinavian origin; akin to Swedish dial. bullersten large stone in a stream, from buller noise + sten stone

Date: 1617

: a detached and rounded or much-worn mass of rock

— boul·dered \-dərd\ adjective

— boul·dery \-d(ə-)rē\ adjective