placed or situated under; lying below, or in a lower situation.-placed under the power of another; specifically (international law), owing allegiance to a particular sovereign or state; as, jamaica is subject to great britain.-exposed; liable; prone; disposed; as, a country subject to extreme heat; men subject to temptation.-obedient; submissive.-that which is placed under the authority, dominion, control, or influence of something else.-specifically: one who is under the authority of a ruler and is governed by his laws; one who owes allegiance to a sovereign or a sovereign state; as, a subject of queen victoria; a british subject; a subject of the united states.-that which is subjected, or submitted to, any physical operation or process; specifically (anat.), a dead body used for the purpose of dissection.-that which is brought under thought or examination; that which is taken up for discussion, or concerning which anything is said or done.-the person who is treated of; the hero of a piece; the chief character.-that of which anything is affirmed or predicated; the theme of a proposition or discourse; that which is spoken of; as, the nominative case is the subject of the verb.-that in which any quality, attribute, or relation, whether spiritual or material, inheres, or to which any of these appertain; substance; substratum.-hence, that substance or being which is conscious of its own operations; the mind; the thinking agent or principal; the ego.  cf. object, n., 2.-the principal theme, or leading thought or phrase, on which a composition or a movement is based.-the incident, scene, figure, group, etc., which it is the aim of the artist to represent.-to bring under control, power, or dominion; to make subject; to subordinate; to subdue.-to expose; to make obnoxious or liable; as, credulity subjects a person to impositions.-to submit; to make accountable.-to make subservient.-to cause to undergo; as, to subject a substance to a white heat; to subject a person to a rigid test.