Pterapoph´ysis, n. Certain process of cranial bones.
Pter´na, n. Heel-pad. (115.)
Ptero´mata, n. pl. (This word is of uncertain meaning.) (89 ?)
Pter´ygoid (bone), n. A slender bone connecting the quadrate with the palatine.
Pter´yla, n.; pl. pterylæ. Area or tract on the skin where feathers grow.
Pterylog´raphy, n. A description of the plumage, especially with reference to the distribution of the feathers on the skin.
Pterylo´sis, n. Plumage, considered with reference to its distribution on the skin.
Pti´la, n. (This word is of uncertain meaning.) (86 ?)
Ptilopæ´des, n. pl. Ptilopædic birds. Such are generally able to run about at birth, or at least to feed themselves. Dasypædes is synonymous.
Ptilopæ´dic, a. Clothed at birth with floccus, which sprouts not only from the future pterylæ, but also from apteria.