reductional

WordReference Random House Learner's Dictionary of American English © 2025

re•duc•tion /rɪˈdʌkʃən/   n. 

1. [uncountable] the act or process of reducing, or the state of being reduced.
2. the amount by which something is reduced:
   [countable] a pay reduction of fifty percent.

See -duc-.

WordReference Random House Unabridged Dictionary of American English © 2025

re•duc•tion  (ri duk′shən), n. 

1. the act of reducing or the state of being reduced.
2. the amount by which something is reduced or diminished.
3. a form produced by reducing;
   a copy on a smaller scale.
4. Cell Biology meiosis, esp. the first meiotic cell division in which the chromosome number is reduced by half.
5. Chemistry the process or result of reducing.
6. Cinema, Show Business [Motion Pictures.] the process of making a print of a narrower gauge from a print of a wider gauge:
   the reduction of 35-mm films to 16-mm for the school market.
7. a village or settlement of Indians in South America established and governed by Spanish Jesuit missionaries.

• Latin reductiōn- (stem of reductiō) a bringing back, equivalent. to reduct(us) (past participle of redūcere; see reduce) + -iōn- -ion
• Middle French reduction
• earlier reduccion 1475–85

re•duc′tion•al, adj.