railroad worm
noun
the larva of a fruit fly, Rhagoletis pomonella, that burrows through apples, forming tunnels that sometimes appear on the skin as faint depressions or darkened trails: a serious pest of apples in colder regions of North America.
Also called
apple maggot.
Origin of railroad worm
First recorded in 1905–10
Words nearby railroad worm
railing,
raillery,
railroad,
railroad flat,
railroad pen,
railroad worm,
railroader,
railroading,
railway,
railwayman,
raiment