arcform: Meaning and Definition of

arc•form

Pronunciation: (ärk'fôrm"), [key]
— adj. Naut.
  1. noting a type of cargo-ship construction in which the sides have the form of arcs so drawn that the greatest breadth is at load waterline, the purpose being to promote the flow of water to the propeller with an easy bilge and without loss of capacity.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.