reductionaladj.
/rᵻˈdʌkʃn̩(ə)l/, /rᵻˈdʌkʃən(ə)l/, U.S. /rəˈdəkʃ(ə)nəl/, /riˈdəkʃ(ə)nəl/ 1. Relating to, of the nature of, or characterized by reduction.
ΘΚΠ
the world > relative properties > number > mathematical number or quantity > [adjective] > changed into different form
reduced1552
reductionala1690
converted-
the world > relative properties > quantity > decrease or reduction in quantity, amount, or degree > [adjective] > characterized by decrease
adminutive1656
reductional1816
a1690 S. Jeake Λογιστικηλογία (1696) 49 Reductional Operation ended, Probation follows.
1701 J. Brampton Tabular Arithm. xiii. 52 By reason the first Term is an Unite, there is no need of Division, except in the Reductional part.
1816 J. Bentham Extract Constit. Code: Official Aptitude Maximized 45 Each bidding will be either reductional, or emptional, or compound.
1876 T. W. Collens Eden of Labor iii. 62 To understand the reductional standard all reference to material measures of commodities..must be dismissed from the mind.
1948 Sociometry 11 264 A third source of error may be found in the reductional explanation of sociometric phenomena. In the desire to reduce the content of a sociometric phenomenon to its essentials, one is apt to over-simplify.
1997 Jrnl. Fish Biol. 50 1221 Based on the observed ontogeny of C[larias] gariepinus and data from the literature, a hypothesis was formulated which indicated the presence of a general reductional trend within siluroids.
2. Biology. Designating the reduction division of meiosis (cf. reduction n. 14h); relating to or arising from reduction division.
ΘΚΠ
the world > life > biology > biological processes > genetic activity > [adjective] > stages of mitosis or meiosis > reduction
reductional1901
postreductional1905
prereductional1905
1901 Trans. Amer. Philos. Soc. 20 225 The chromatin microsomes may become rearranged into fours in such a way that one of the maturation divisions may be reductional.
1965 P. Bell & D. Coombe tr. Strasburger's Textbk. Bot. (new ed.) 334 The genetic consequences of crossing both dihybrids and polyhybrids are directly dependent upon the manner in which the chromosomes are distributed at the reductional division.
1997 Genetics 147 33 Functional axial elements are essential for wild-type levels of recombination and proper reductional segregation at meiosis I.
2005 T. R. Gregory & B. K. Mable in T. R. Gregory Evol. Genome viii. 455 In some triploid females..reproduction occurs via a curious process..in which the minority genome is excluded, followed by either reductional meiosis to produce haploid eggs or nonreductional meiosis to produce diploid eggs.
This entry has been updated (OED Third Edition, September 2009; most recently modified version published online March 2022).
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adj.a1690