A British dialect term historically applied to small shorebirds — particularly the dunlin or sandpiper — that scurry along beaches in a way that resembles a mouse darting across sand. Also used in the archaic sense for a jird, a small burrowing rodent of arid regions. Both uses are largely extinct in everyday speech.
The kids spent the afternoon watching a sand mouse dart between the tide pools at low water.
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(archaic) A jird .
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(UK, dialect) A bird, the dunlin or sandpiper.
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