The Collaborative International Dictionary of English v.0.48:
Worm-shaped \Worm"-shaped`\, a. Shaped like a worm; ?hick and almost cylindrical, but variously curved or bent; as, a worm-shaped root. [1913 Webster]WordNet (r) 3.0 (2006):
worm-shaped adj 1: resembling a worm; long and thin and cylindrical [syn: vermiform, worm-shaped]