1. of, relating to, or characteristic of an archegonium (the female reproductive organ in mosses, liverworts, and ferns)
Usage: botanical; technical

Examples

• The archegonial structure in ferns contains the egg cell that will be fertilized by sperm.
• Botanists examined the archegonial tissue under the microscope to study reproduction in mosses.
• The archegonial neck allows sperm to enter and reach the egg cell.
• In liverworts, the archegonial chamber is surrounded by protective tissue.