a. [f. prec. + -ABLE.] † a. Capable of increasing. Obs. b. Capable of being increased.

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1471.  Ripley, Comp. Alch., XI. iii. (Ashm. 1652), 182. Ryche ys he whych any parte hath in store Of our Elixers whych be augmentable infynytly.

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1775.  Harris, Philos. Arrangem., Wks. 1841, 306. Every multitude is infinitely augmentable.

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