We found 4 dictionaries that define the word spiny-headed worms:

General (2 matching dictionaries)

1. spiny-headed worms: Merriam-Webster
2. spiny-headed worms: TheFreeDictionary.com

Medicine (2 matching dictionaries)

3. spiny-headed worms: Merriam-Webster Medical Dictionary
4. spiny-headed worms: Medical dictionary

(Note: See spiny-headed_worm as well.)

Definitions from Wiktionary (spiny-headed worm) ▸ noun:  A parasitic worm of the Acanthocephala phylum ▸ Also see spiny-headed_worm ▸ Words similar to spiny-headed worms ▸ Usage examples for spiny-headed worms ▸ Idioms related to spiny-headed worms ▸ Wikipedia articles (New!) ▸ Words that often appear near spiny-headed worms ▸ Rhymes of spiny-headed worms ▸ Invented words related to spiny-headed worms