psephite
noun
pse·phite
ˈsēˌfīt
plural -s
: a coarse fragmental rock composed of rounded pebbles (as conglomerate) compare pelite, psammite
psephitic adjective
(ˈ)sē¦fitik
Word History
Etymology
French pséphite, from pséph- (from Greek psēphos pebble) + -ite