Definitions

1. adjective

relating to or characterized by trochites, or a type of fossil shell; especially one that has a spiral shell

“The paleontologist studied trochitic fossils to learn about ancient mollusks.”

2. noun

a trochite or a fossil shell with a spiral form

“The museum displayed a trochitic as one of its most prized exhibits.”

3. noun

a type of layer or stratum, especially in a sedimentary rock

“The geologist analyzed the trochitic layers to determine the rock’s age and origin.”