Ru´diment, n. A beginning.
Rudimen´tary, a. Undeveloped; imperfectly elaborated; existing only in its beginnings.
Ruff, n. Set of lengthened or otherwise modified or peculiarly colored feathers around the throat or whole neck.
Ru´ga, n. Ridge or raised fold; wrinkle.
Rugose´ or Ru´gous, a. Wrinkled.
Rump, n. Uropygium (which see). (60.)
S.
Sac´ral, a. Pertaining to the sacrum.
Sac´rum, n. A compound bone of the spine, composed of several anchylosed vertebræ of the pelvic region, with which the iliac bones are sutured.
Sac´ro-coccyge´al, a. Pertaining to the sacrum considered as comprising also several coccygeal vertebræ.