(adj) sufficiently significant to affect the whole world, Syn. world-shattering, world-shaking, Example:earthshaking proposals; the contest was no world-shaking affair; the conversation...could hardly be called world-shattering
n. (Bot.) A curious fungus of the genus Geaster, in which the outer coating splits into the shape of a star, and the inner one forms a ball containing the dustlike spores. [ 1913 Webster ]