Pertaining to the faith, practices, etc. of the Eastern Orthodox Church.

Of, or relating to the dental speciality of orthodontics.

Of, or relating to orthopedics.

Synonym of phonology: the study of pronunciation. / Accepted or customary pronunciation.

(countable, architecture) A form of projection used to represent three-dimensional objects in two dimensions, in which all the projection lines are orthogonal or perpendicular to the projection plane; an orthographic projection, especially when used to draw an elevation, vertical projection, etc., of a building; also (obsolete) a drawing made in this way.

(transitive, rare, archaic) To spell (words) or write (text) according to established usage.

(medicine) A specialty of dentistry concerned with correcting misalignment of teeth.

A bed designed to relieve specific skeletal symptoms, typically having a very firm mattress or a board.

(medicine) The branch of medicine that deals with the prevention or correction of disorders of the bones and associated muscles and joints

(medicine) A surgeon who specializes in orthopedics.