sigmoidaladj.

/sɪɡˈmɔɪdəl/

Etymology: See sigmoid adj. and -al suffix¹.

= sigmoid adj.

ΘΚΠ

the world > space > shape > curvature > series of curves > [adjective] > having double curve

sigmoidal1666

swan-necked1746

sigmoid1786

swan-neck1844

sigmate1887

goose-necked1907

the world > space > shape > curvature > types of curvature > [adjective] > of form of arc of circle > semicircular arc

sigmoidal1753

1666 J. Smith Γηροκομία Βασιλικὴ 233 The sigmoidal Portals hindering its return, it [the blood] must pass through the Streiner of the Lungs.

1753 Chambers's Cycl. Suppl. at Sigmoides The semicircular cavity of the cubit..is sometimes also called the sigmoidal-cavity.

1826 W. Kirby & W. Spence Introd. Entomol. IV. xxxviii. 55 The pupa..has likewise a pair of long sigmoidal ones [respiratory organs] on the back of the trunk.

1845 Encycl. Metrop. VI. 598/2 The beds of coal and accompanying strata are bent into a sigmoidal flexure.

1879 F. Rutley Study of Rocks xi. 187 At times they have a somewhat sigmoidal flexure.

Derivatives

sigˈmoidally adv. in a sigmoidal manner.

ΘΚΠ

the world > space > shape > curvature > series of curves > [adverb] > double curve

sigmoidally1854

the world > space > shape > curvature > types of curvature > [adverb] > like semicircular arc

sigmoidally1854

1854 Orr's Circle Sci.: Org. Nature I. 218 The femur..is sigmoidally bent.

1886 Geol. Mag. (N.S.) III. 150 The sigmoidally curved folds of the ganoine.

This entry has not yet been fully updated (first published 1910; most recently modified version published online March 2022).

单词	sigmoidal
释义	sigmoidaladj. /sɪɡˈmɔɪdəl/ Etymology: See sigmoid adj. and -al suffix¹. = sigmoid adj. ΘΚΠ the world > space > shape > curvature > series of curves > [adjective] > having double curve sigmoidal1666 swan-necked1746 sigmoid1786 swan-neck1844 sigmate1887 goose-necked1907 the world > space > shape > curvature > types of curvature > [adjective] > of form of arc of circle > semicircular arc sigmoidal1753 1666 J. Smith Γηροκομία Βασιλικὴ 233 The sigmoidal Portals hindering its return, it [the blood] must pass through the Streiner of the Lungs. 1753 Chambers's Cycl. Suppl. at Sigmoides The semicircular cavity of the cubit..is sometimes also called the sigmoidal-cavity. 1826 W. Kirby & W. Spence Introd. Entomol. IV. xxxviii. 55 The pupa..has likewise a pair of long sigmoidal ones [respiratory organs] on the back of the trunk. 1845 Encycl. Metrop. VI. 598/2 The beds of coal and accompanying strata are bent into a sigmoidal flexure. 1879 F. Rutley Study of Rocks xi. 187 At times they have a somewhat sigmoidal flexure. Derivatives sigˈmoidally adv. in a sigmoidal manner. ΘΚΠ the world > space > shape > curvature > series of curves > [adverb] > double curve sigmoidally1854 the world > space > shape > curvature > types of curvature > [adverb] > like semicircular arc sigmoidally1854 1854 Orr's Circle Sci.: Org. Nature I. 218 The femur..is sigmoidally bent. 1886 Geol. Mag. (N.S.) III. 150 The sigmoidally curved folds of the ganoine. This entry has not yet been fully updated (first published 1910; most recently modified version published online March 2022). < adj.1666
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