Elytrum :: Elytrum (n.) One of the anterior pair of wings in the Coleoptera and some other insects, when they are thick and serve only as a protection for the posterior pair..
Elytrum :: Elytrum (n.) One of the shieldlike dorsal scales of certain annelids. See Chaetopoda.
Gastroelytrotomy :: Gastroelytrotomy (n.) The operation of cutting into the upper part of the vagina, through the abdomen (without opening the peritoneum), for the purpose of removing a fetus. It is a substitute for the Caesarean operation, and less dangerous..