/muy"teuhr/ , n.
1. the official headdress of a bishop in the Western Church, in its modern form a tall cap with a top deeply cleft crosswise, the outline of the front and back resembling that of a pointed arch.
2. the office or rank of a bishop; bishopric.
3. Judaism. the official headdress of the ancient high priest, bearing on the front a gold plate engraved with the words Holiness to the Lord. Ex. 28:36-38.
4. a fillet worn by women of ancient Greece.
5. Carpentry. an oblique surface formed on a piece of wood or the like so as to butt against an oblique surface on another piece to be joined with it.
6. Naut. the inclined seam connecting the two cloths of an angulated sail.
v.t.
7. to bestow a miter upon, or raise to a rank entitled to it.
8. to join with a miter joint.
9. to cut to a miter.
10. to join (two edges of fabric) at a corner by various methods of folding, cutting, and stitching.
Also, esp. Brit., mitre .
[ 1350-1400; ME mitre (n.) mitra mítra turban, headdress ]