Origin of oil gland
Examples from the Web for oil gland
Sever the backbone at the joint, and then you have all the root of the tail, together with the oil-gland, dissected from the body.Wanderings in South America|Charles Waterton
Perhaps the entire absence of the oil-gland in fantail pigeons may be connected with the great development of their tails.
Tail expanded, directed upwards, formed of many feathers; oil-gland aborted; body and beak rather short.
The oil-gland varies in development, and is sometimes quite aborted.
Nitzsch, on the absence of the oil-gland in certain Columb, i. 147.