redworm

The English word “redworm” has 2 meanings listed here.

noun

A type of small, reddish earthworm, Lumbricus rubellus, used as bait in angling; also, in later use, the brandling, Eisenia foetida.
A parasitic worm of the family Strongylidae, which causes anaemia in many vertebrates.

From red + worm.

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