The Collaborative International Dictionary of English v.0.48:
Roman \Ro"man\, a. [L. Romanus, fr. Roma Rome: cf. F. romain.
Cf. Romaic, Romance, Romantic.]
1. Of or pertaining to Rome, or the Roman people; like or
characteristic of Rome, the Roman people, or things done
by Romans; as, Roman fortitude; a Roman aqueduct; Roman
2. Of or pertaining to the Roman Catholic religion;
professing that religion.
(a) Upright; erect; -- said of the letters or kind of type
ordinarily used, as distinguished from Italic
(b) Expressed in letters, not in figures, as I., IV., i.,
iv., etc.; -- said of numerals, as distinguished from
the Arabic numerals, 1, 4, etc.
Roman alum (Chem.), a cubical potassium alum formerly
obtained in large quantities from Italian alunite, and
highly valued by dyers on account of its freedom from
Roman balance, a form of balance nearly resembling the
modern steelyard. See the Note under Balance, n., 1.
Roman candle, a kind of firework (generally held in the
hand), characterized by the continued emission of shower
of sparks, and the ejection, at intervals, of brilliant
balls or stars of fire which are thrown upward as they
Roman Catholic, of, pertaining to, or the religion of that
church of which the pope is the spiritual head; as, a
Roman Catholic priest; the Roman Catholic Church.
Roman cement, a cement having the property of hardening
under water; a species of hydraulic cement.
Roman law. See under Law.
Roman nose, a nose somewhat aquiline.
Roman ocher, a deep, rich orange color, transparent and
durable, used by artists. --Ure.
Roman order (Arch.), the composite order. See Composite,