Definition of "bulbus" []

• A bulb: used chiefly in anatomy in such phrases as bulbus oculi, the eyeball; bulbus aortæ, the aortic bulb. (noun)

The Century Dictionary (Public Domain)

• "It is a result of the swelling of the bulbus glandis or “knot” swelling at the time of ejaculation."
• "Adam: u is cerct. ladycat is her. no harblz in site. but her sistr has bulbus volvo. thatz wot teh vet sez."
• "The tie is caused by the swelling of the base of a male's penis, the bulbus glandis, and the constriction of the female's vaginal sphincter muscles around it Fuller and DuBuis, 1962."