Source : Webster's Revised Unabridged Dictionary (1913)

Conscious \Con"scious\, a. [L. conscius; con- + scire to know.
   See {Conscience}.]
   1. Possessing the faculty of knowing one's own thoughts or
      mental operations.

            Some are thinking or conscious beings, or have a
            power of thought.                     --I. Watts.

   2. Possessing knowledge, whether by internal, conscious
      experience or by external observation; cognizant; aware;
      sensible.

            Her conscious heart imputed suspicion where none
            could have been felt.                 --Hawthorne.

            The man who breathes most healthilly is least
            conscious of his own breathing.       --De Quincey.

   3. Made the object of consciousness; known to one's self; as,
      conscious guilt.

            With conscious terrors vex me round.  --Milton.

   Syn: Aware; apprised; sensible; felt; known.

Source : WordNet®

conscious
     adj 1: intentionally conceived; "a conscious effort to speak more
            slowly"; "a conscious policy" [syn: {witting}]
     2: knowing and perceiving; having awareness of surroundings and
        sensations and thoughts; "remained conscious during the
        operation"; "conscious of his faults"; "became conscious
        that he was being followed" [ant: {unconscious}]
     3: (followed by `of') showing realization or recognition of
        something; "few voters seem conscious of the issue's
        importance"; "conscious of having succeeded"; "the careful
        tread of one conscious of his alcoholic load"- Thomas
        Hardy [syn: {conscious(p)}]