pterylographic, pterylographical

[Eng. pterylograph ( y ); -ic, -ical. ] Pertaining to, or connected with, pterylography (q. v.); treating of the distribution of the feather-tracts. pter-ý-lō-grăph-ic-al-ly, adv . [Eng. pterylo. graphical : -ly .] With reference to the distribution of the feather-tracts. pter-y-log-ra-phy, s. [Modern Latin pterylo graphia: Mod. Lat. pteryle (q. v.), and Gr. graphō =to write.] ptyalin