sexdecimaladj.

Brit.

/sɛksˈdɛsᵻml/, U.S.

/sɛksˈdɛs(ə)m(ə)l/

Origin: Formed within English, by compounding. Etymons: sex- comb. form, decimal adj.

Etymology: < sex- comb. form + decimal adj. In sense 1 after French sexdécimal ( R. J. Haüy Traité de minéral. (1801) I. 189). Compare earlier undecimal adj., duodecimal adj.

Now rare.

†1. Crystallography. Of a crystal: having six prismatic faces parallel to the central axis and ten faces at each pyramidal end, or vice versa. Obsolete.

ΚΠ

1807 O. Gregory tr. R. J. Haüy Elem. Treat. Nat. Philos. I. v. 434 The examination of topaz crystals, including both the new varieties of form, (viz. the Octosexdecimal aluminous fluate of silica, and the Perioctaëdral aluminous fluate of silica with a sexdecimal summit), has conducted M. Haüy to two interesting results.

1837 C. U. Shepard Rep. Geol. Surv. Connecticut xiii. 131 The china-stone quarry in Middletown, occasionally affords imperfect crystals of the sexdecimal figure, a foot in length.

2. Relating to the number 16 or division into sixteen parts. Cf. sexadecimal adj.

ΚΠ

1860 Select. Papers Thomas Wright Hill 75 On the scale of sixteen those three busy factors would have ¼, ½, and ¾ for their logarithms, expressed by 4, 8, and 12 sexdecimal primes.

1878 Johnson's New Universal Cycl. IV. 1736/1 Of weights, there are, for ordinary commerce, the avoirdupois pound, with its sexdecimal subdivisions.

1891 O. C. Pell in P. E. Dove Domesday Stud. II. 566 The decimal, duodecimal, and sexdecimal allotments called Virgates are dealt with.

1909 Science 22 Jan. 153/1 J. B. Webb: ‘Esperanto and a Sexdecimal Notation’.

This entry has been updated (OED Third Edition, December 2008; most recently modified version published online March 2022).

单词	sexdecimal
释义	sexdecimaladj. Brit. /sɛksˈdɛsᵻml/, U.S. /sɛksˈdɛs(ə)m(ə)l/ Origin: Formed within English, by compounding. Etymons: sex- comb. form, decimal adj. Etymology: < sex- comb. form + decimal adj. In sense 1 after French sexdécimal ( R. J. Haüy Traité de minéral. (1801) I. 189). Compare earlier undecimal adj., duodecimal adj. Now rare. †1. Crystallography. Of a crystal: having six prismatic faces parallel to the central axis and ten faces at each pyramidal end, or vice versa. Obsolete. ΚΠ 1807 O. Gregory tr. R. J. Haüy Elem. Treat. Nat. Philos. I. v. 434 The examination of topaz crystals, including both the new varieties of form, (viz. the Octosexdecimal aluminous fluate of silica, and the Perioctaëdral aluminous fluate of silica with a sexdecimal summit), has conducted M. Haüy to two interesting results. 1837 C. U. Shepard Rep. Geol. Surv. Connecticut xiii. 131 The china-stone quarry in Middletown, occasionally affords imperfect crystals of the sexdecimal figure, a foot in length. 2. Relating to the number 16 or division into sixteen parts. Cf. sexadecimal adj. ΚΠ 1860 Select. Papers Thomas Wright Hill 75 On the scale of sixteen those three busy factors would have ¼, ½, and ¾ for their logarithms, expressed by 4, 8, and 12 sexdecimal primes. 1878 Johnson's New Universal Cycl. IV. 1736/1 Of weights, there are, for ordinary commerce, the avoirdupois pound, with its sexdecimal subdivisions. 1891 O. C. Pell in P. E. Dove Domesday Stud. II. 566 The decimal, duodecimal, and sexdecimal allotments called Virgates are dealt with. 1909 Science 22 Jan. 153/1 J. B. Webb: ‘Esperanto and a Sexdecimal Notation’. This entry has been updated (OED Third Edition, December 2008; most recently modified version published online March 2022). < adj.1807
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