the 24th in order or in a series, or, when I is omitted, the 23rd.
(sometimes l.c.) the Roman numeral for 10. Cf.
Christ.
Christian.
cross.
reactance.
a ten-dollar bill.
(in the U.S.) a rating of the Motion Picture Association of America for movies with subject matter that is suitable for adults only: persons who are under age (usually 17) will not be admitted. Cf.(def. 7),(def. 5).
(in Great Britain) a designation for a film recommended for adults only. Cf.(def. 11),(def. 5),(def. 5).
a person, thing, agency, factor, etc., of unknown identity.