a small brown European songbird, Riparia riparia, with white underparts: it nests in tunnels bored in sand, river banks, etc: family Hirundinidae (swallows and martins)
sand martin in American English
noun
Brit
the bank swallow
Word origin
[1660–70]This word is first recorded in the period 1660–70. Other words that entered Englishat around the same time include: adhesive, cantilever, indicator, saturated, sketch