The Collaborative International Dictionary
Cliff swallow
Cliff \Cliff\ (kl[i^]f), n. [AS. clif, cloef; akin to OS. klif, D. klif, klip, Icel. klif, Dan. & G. klippe, Sw. klippa; perh. orig. a climbing place. See Climb.] A high, steep rock; a precipice.
Cliff swallow (Zo["o]l.), a North American swallow ( Petrochelidon lunifrons), which builds its nest against cliffs; the eaves swallow.
Wiktionary
cliff swallow
n. Any of various birds in the genus ''Petrochelidon'' that nest in cliffs.
WordNet
cliff swallow
n. North American swallow that lives in colonies and builds bottle-shaped mud nests on cliffs and walls [syn: Hirundo pyrrhonota]
Usage examples of "cliff swallow".
Suspended like a cliff swallow over lakes in the Absaroka Beartooth, dangling above a sea of dusty live oaks in northern California.