FAT n.
-- Natural fats (Chem.), the group of oily substances of natural occurrence, as butter, lard, tallow, etc., as distinguished from certain fatlike substance of artificial production, as paraffin. Most natural fats are essentially mixtures of triglycerides of fatty acids.
GRAY a.
r (Min.), tetrahedrite. -- Gray duck (Zoöl.), the gadwall; also applied to the female mallard. -- Gray falcon (Zoöl.) the peregrine falcon. -- Gray Friar. See Franciscan, and Friar. -- Gray hen (Zoöl.), the female of the blackcock or black grouse. See Heath grouse. -- Gray mill or millet (Bot.), a name of several…