paddle worm

noun

1. any of a family of green-blue faintly iridescent active marine polychaete worms of the genus Phyllodoce, having paddle-shaped swimming lobes, found under stones on the shore

Example Sentences

In this way is formed, out of separate blades, a practically complete screw, technically known as a “paddle worm.”

From Project Gutenberg

A continuous worm, being more rigid than a paddle worm, needs fewer supports.

From Project Gutenberg