Definition of "doubling"

doubling

verb
1. present participle and gerund of double
noun
countable and uncountable, plural doublings
1. The process or an instance of making something double; a multiplication by two.
  Quotations
  Similitude applies to proportional changes, such as doublings, halvings, or quarterings; it does not apply to additive changes.
  1994, David C. Schneider, Quantitative Ecology: Spatial and Temporal Scaling, page 36
2. The act of turning around, or doubling back.
3. A pleat or fold.
4. (archaic) A trick; double-dealing.