The Collaborative International Dictionary
Archegonial \Ar`che*go"ni*al\, a. Relating to the archegonium.
Syn: archegoniate, archegonical. [1913 Webster]
WordNet
adj. of or relating to an archegonium [syn: archegoniate]
Usage examples of "archegonial".
Fertilization is effected by the passage of a spermatozoid, attracted probably by means of a chemical stimulus, down the passage of the archegonial neck and its fusion with the ovum.
It remains for long enclosed within the calyptra formed by the further development of the archegonial wall and surmounted by the neck of the archegonium.
The leaves below the archegonial group are frequently modified in size and shape, but the chief protection is afforded by a tubular perianth, which corresponds to a coherent whorl of leaves and grows up independently of fertilization.
The very large, thin-walled spores escape on the decay of the capsule, which ruptures the archegonial wall irregularly.