Pronunciation: (pī'lut-fish"), [key]
—pl. (esp. collectively) -fish, (esp. referring to two or more kinds or species) -fish•es.
1. a small, marine fish, Naucrates ductor, often swimming with sharks.
2. any of various other fishes having similar habits.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.