ACTE. A peninsula; the term was particularly applied by the ancients to the sea-coast around Mount Athos.

ACT OF COURT. The decision of the court or judge on the verdict, or the overruling of the court on a point of law.

ACT OF GOD. This comprehends all sudden accidents arising from physical causes, as distinguished from human agency, such as from lightning, earthquakes, hurricanes, plagues, and epidemic contagion amongst the crew. For none of these are ship-owners responsible.

ACT OF GRACE. An act of parliament for a general and free pardon to deserters from the service and others.

ACTING COMMISSION. When a commissioned officer is invalided, his vacancy is filled up pending the pleasure of the admiralty by an acting order. But when an officer dies on a station, where the admiralty delegates the power to the admiral commanding in chief, the vacancy is filled by an acting commission. Thus also rear-admirals now act on acting commissions as vice-admirals during command on their station, but return to their proper position on the navy list when it ceases.

ACTION. Synonymous with battle. Also a term in mechanics for the effort which one body exerts against another, or the effects resulting therefrom.—Action and reaction, the mutual, successive, contrary impulses of two bodies.

ACTIVE SERVICE. Duty against an enemy; operations in his presence. Or in the present day it denotes serving on full-pay, on the active list, in contradistinction to those who are virtually retired, and placed on separate lists.

ACTIVITY. The virtue of acting. The sphere of activity is the surrounding space to which the efficacy of a body extends, as the attraction of the magnet.

ACTO, or Acton. A kind of defensive tunic, made of quilted leather, or other strong material, formerly worn under the outer dress, and even under a coat of mail.

ACTUARIÆ. Long light vessels of the ancients, especially contrived for swiftness; propelled both by sails and oars; of the latter never less than twenty.