/kɒlɪˈɒnɪk/ (koh-lee-OH-nik)

Definitions

1. adjective

relating to or resembling a colyon, especially in being a type of fossil shell

“The colyonic fossils discovered in the area date back thousands of years.”

2. noun

a type of fossil shell

“The museum showcased various colyonic specimens for its visitors to learn about.”