Source : Webster's Revised Unabridged Dictionary (1913)

Perceptible \Per*cep"ti*ble\, a. [L. perceptibilis: cf. F.
   perceptible. See {Perceive}.]
   Capable of being perceived; cognizable; discernible;
   perceivable.

         With a perceptible blast of the air.     --Bacon.
   -- {Per*cep"ti*ble*ness}, n. -- {Per*cep"ti*bly}, adv.

Source : WordNet®

perceptible
     adj 1: capable of being perceived by the mind or senses; "a
            perceptable limp"; "easily perceptible sounds";
            "perceptible changes in behavior" [ant: {imperceptible}]
     2: easily perceived by the senses or grasped by the mind; "a
        perceptible sense of expectation in the court"; "an
        obvious (or palpable) lie" [syn: {obvious}]
     3: easily seen or detected; "a detectable note of sarcasm"; "he
        continued after a perceptible pause" [syn: {detectable}]