- The outer level of a Graafian hair follicle.
- An ootheca.
- The outer level of a Graafian follicle.
- Just Like Oötheca.
- An egg-case; an ovisac; a capsule of a person ovum, responding to as to the is known as a Graafian follicle in human being types, or an instance of a number of ova. See cut-under mermaid's-purse.