petrochelidon lunifrons

1 definition found

petrochelidon lunifrons - Collaborative International Dictionary of English v.0.48 :

  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.
     [1913 Webster]
  
     Cliff swallow (Zool.), a North American swallow
        (Petrochelidon lunifrons), which builds its nest against
        cliffs; the eaves swallow.
        [1913 Webster]