hookworm

noun

hook·​worm ˈhu̇k-ˌwərm 

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

Examples of hookworm in a Sentence

Recent Examples on the Web

Rolo was eventually hospitalized at an emergency clinic and diagnosed with emaciation, anemia, scrotal dermatitis, a heart murmur, hookworm and ataxia, which prompted him to get a blood transfusion, the release said. —Nicholas Rice, People.com, 15 Feb. 2025

In addition to risks of hookworms and roundworms, pets are also vulnerable to whipworm, giardia and coccidia. —Julia Wuerz, The Conversation, 6 Feb. 2024

Intestinal parasites like hookworms and whipworms rank among the world’s most pressing public health crises. —Kate Golembiewski, Discover Magazine, 1 Aug. 2024

Hotez has led or is currently leading development of vaccines for hookworm, schistosomiasis, Chagas disease, and SARS. —Peter Hotez, TIME, 2 May 2024

Word History

First Known Use

1902, in the meaning defined at sense 1

Kids Definition

hookworm

noun

hook·​worm -ˌwərm 

1

: a parasitic nematode worm having strong hooks or plates about the mouth

2

: a diseased state marked by blood loss, paleness, and weakness due to hookworms in the intestine

called also hookworm disease

Medical Definition

hookworm

noun

hook·​worm ˈhu̇k-ˌwərm 

1

: any of several parasitic nematode worms of the family Ancylostomatidae that have strong buccal hooks or plates for attaching to the host's intestinal lining and that include serious bloodsucking pests

2

: ancylostomiasis