bilamellate
/ˌbaɪˌæməˈleɪt/; /baɪˈæmɪleɪt/Definitions
1. adjective
Having two ridges or layers, especially of tissue or a membrane.
“The biologist studied the bilamellate structure of the cell membrane under the microscope.”
2. noun
A bilamellate structure or formation.
“The scientist examined the bilamellate patterns found in the rock formation.”