Definition of hookworm
1
: any of several parasitic nematode worms (family Ancylostomatidae) that have strong buccal hooks or plates for attaching to the host's intestinal lining and that include serious bloodsucking pests
2
: infestation with or disease caused by hookworms
especially
: a lethargic anemic state in humans due to blood loss from hookworms feeding in the small intestine
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Merriam-Webster unabridged
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Time Traveler for hookworm
The first known use of hookworm was in 1902
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