Source : Webster's Revised Unabridged Dictionary (1913)

Measurable \Meas"ur*a*ble\, a. [F. mesurable, L. mensurabilis.
   See {Measure}, and cf. {Mensurable}.]
   1. Capable of being measured; susceptible of mensuration or
      computation.

   2. Moderate; temperate; not excessive.

            Of his diet measurable was he.        --Chaucer.
      -- {Meas"ur*a*ble*ness}, n. -- {Meas"ur*a*bly}, adv.

            Yet do it measurably, as it becometh Christians.
                                                  --Latimer.

Source : WordNet®

measurable
     adj 1: possible to be measured; "measurable depths" [syn: {mensurable}]
            [ant: {immeasurable}]
     2: of distinguished importance; "a measurable figure in
        literature"