Ambulacrum, am-bū-lā′krum, n. a row of pores in the shell of an echinoderm, as a sea-urchin, through which the tube-feet protrude.—adj. Ambulā′cral. [L., a walk—ambulāre, to walk.]

Ambulance, am′būl-ans, n. a carriage which follows an army and serves as a movable hospital for the wounded—also used as an adj., as in ambulance wagon.—n. Ambulan′cier, a man attached to an ambulance.—adj. Am′bulant, walking: moving from place to place: (rare) unfixed.—v.t. and v.i. Am′bulate (rare), to walk.—p.adj. Am′bulating.—n. Ambulā′tion.—adj. Am′bulatory, having the power or faculty of walking: moving from place to place, not stationary: mutable.—n. any part of a building intended for walking in, as the aisles of a church, or the cloisters of a monastery: any kind of corridor. [Fr.—L. ambulans, -antis, pr.p. of ambulāre, to walk about.]

Ambuscade, am′busk-ād, n. a hiding to attack by surprise: a body of troops in concealment: the hidden place of ambush—used also as a verb.—n. Ambuscā′do, a now archaic form of Ambuscade (common in 17th century):—pl. Ambuscā′does. [Fr. embuscade. See Ambush.]

Ambush, am′boosh, n. and v. same meanings as Ambuscade.—n. Am′bushment (B.), ambush. [O. Fr. embusche (mod. embûche), embuscher, Low L. emboscārein-, in, and boscus, a bush.]

Ameer, or Amere, a-mēr′, n. a title of honour, also of an independent ruler in Mohammedan countries. [Ar. amīr. See Admiral.]

Ameliorate, a-mēl′yor-āt, v.t. to make better: to improve.—v.i. to grow better.—n. Ameliorā′tion, the condition of being made better: improvement or the means of such.—adj. Amel′iorative. [L. ad, to, and melior, better.]

Amen, ā′men′, or ä′men′, interj. so let it be!—v.t. to say amen to anything, to ratify solemnly. [Gr.—Heb. āmēn, firm, true.]

Amenable, a-mēn′a-bl, adj. easy to be led or governed: liable or subject to.—ns. Amenabil′ity, Amen′ableness.—adv. Amen′ably. [Fr. amener, to lead—a = L. ad, and mener, to lead—Low L. mināre, to lead, to drive (as cattle)—L. mināri, to threaten.]

Amenage, am′e-nāj, v.t. (Spens.) to manage. [O. Fr. amenager. See Manage.]

Amenance, am′e-nans, n. (Spens.) conduct, behaviour. [O. Fr. amenance, from root of Amenable.]