1.
[syn: empire, imperium]
2. supreme authority; absolute dominion;
The Collaborative International Dictionary of English v.0.48:
Imperium \Im*pe"ri*um\, n.; pl. Imperia. [L. See Empire.]
1. Supreme power; absolute dominion; empire.
[Webster 1913 Suppl.]
2. (Law) The right to command, which includes the right to
employ the force of the state to enforce the laws. It is
one of the principal attributes of the executive power.
[Webster 1913 Suppl.]
WordNet (r) 3.0 (2006):
imperium
n 1: the domain ruled by an emperor or empress; the region over
which imperial dominion is exercised [syn: empire,
imperium]
2: supreme authority; absolute dominion
Bouvier's Law Dictionary, Revised 6th Ed (1856):
IMPERIUM. The right to command, which includes the right to employ the force
of the state to enforce the laws; this is one of the principal attributes of
the power of the executive. 1 Toull. n. 58.