different between bottling vs mottling

English

bottling (plural bottlings)

A batch of bottled liquids, as from a single vat, barrel, or seasonal growth.
The bottlings from the barrel-aged wines bear a premium label.
The act of pelting (a musical act on stage, etc.) with bottles as a sign of disapproval.

bottling

mottling

mottling (plural mottlings)

spots or blotches of different shades or colours
- 1910, The Year Book of Dermatology (page 124)
  The skin was somewhat pigmented, especially in certain regions, while over the whole there appeared whitish, rounded or oval mottlings or dapplings, most obvious where the surrounding cuticle was most deeply colored.

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