A shape like that of a shield; usually, an inverted triangle with sides that curve inward to form a pointed bottom, commonly used for police identifications and company logos.
A large expanse of exposed stable Precambrian rock.
From Middle English scheld, shelde, from Old English scield ("shield"), from Proto-West Germanic *skeldu, from Proto-Germanic *skelduz ("shield"), from Proto-Indo-European *(s)kelH- ("cut, split"). Cognate with West Frisian skyld, Dutch schild ("shield"), German Schild ("shield"), Danish skjold ("shield"), Icelandic skjöldur ("shield") and Faroese skjøldur ("shield")