Definition of handworm in English:

handworm

noun

historical
  • The itch mite, Sarcoptes scabiei, which causes scabies and often burrows in the skin of the hands.

Origin

Old English; earliest use found in Corpus Glossary. From hand + worm, so named because the hands are especially vulnerable to the parasite.

Pronunciation

handworm

/ˈhandwəːm/