1. A small point of practice that, though seemingly unimportant, must usu. be observed to achieve a particular legal result.
2. Hist. (pl.) Robes worn by magistrates on solemn occasions.
3. Copyright. (usu. pl.) A procedural requirement formerly required before receiving U.S. copyright protection. • Formalities included (1) a copyright notice appearing on the work, (2) actual publication, (3) registration with the Copyright Office, and (4) deposit of the work with the Library of Congress. The formality requirements eroded during the 20th century. Today, none are required, although registration remains a prerequisite for an infringement suit by U.S. authors.
