undularadj.

Etymology: < Latin type *undulāris : compare undulary adj.Previous versions of the OED give the stress as: ˈundular.

a. Wavy, undulating.

ΘΚΠ

the world > space > shape > unevenness > [adjective] > undulating

waved1577

redundant1667

rippling1670

wavya1701

undular1738

undulating1738

up and down1775

waving1810

undulous1862

1738 E. Chambers Cycl. (ed. 2) at Muscle They contract themselves into an undular kind of surface.

b. Applied to a type of hydraulic jump consisting of a number of waves of diminishing size trailing downstream, with little difference in the water levels on either side of them.

ΘΚΠ

the world > matter > liquid > liquid flow > action or process of flowing > [adjective] > changing abruptly

undular1961

1961 V. L. Streeter Handbk. Fluid Dynamics xxiv. 36 On the basis of Froude number..the hydraulic jump may be classified into five types... For F₁ = 1 to 1·7, the flow surface shows undulations; an undular jump is formed.

1982 Sci. Amer. June 134/2 Whether a particular bore is breaking or undular depends on the height of the tide, the depth of the river, [etc.].

Derivatives

ˈundularly adv.

ΘΚΠ

the world > space > shape > unevenness > [adverb] > undulatingly

undulatingly1794

undularly1805

1805 T. Weaver tr. A. G. Werner Treat. Fossils 275 1. Spherically..2. Undularly.

This entry has not yet been fully updated (first published 1921; most recently modified version published online June 2019).

单词	undular
释义	undularadj. Etymology: < Latin type undulāris : compare undulary adj.Previous versions of the OED give the stress as: ˈundular. a. Wavy, undulating. ΘΚΠ the world > space > shape > unevenness > [adjective] > undulating waved1577 redundant1667 rippling1670 wavya1701 undular1738 undulating1738 up and down1775 waving1810 undulous1862 1738 E. Chambers Cycl.* (ed. 2) at Muscle They contract themselves into an undular kind of surface. b. Applied to a type of hydraulic jump consisting of a number of waves of diminishing size trailing downstream, with little difference in the water levels on either side of them. ΘΚΠ the world > matter > liquid > liquid flow > action or process of flowing > [adjective] > changing abruptly undular1961 1961 V. L. Streeter Handbk. Fluid Dynamics xxiv. 36 On the basis of Froude number..the hydraulic jump may be classified into five types... For F₁ = 1 to 1·7, the flow surface shows undulations; an undular jump is formed. 1982 Sci. Amer. June 134/2 Whether a particular bore is breaking or undular depends on the height of the tide, the depth of the river, [etc.]. Derivatives ˈundularly adv. ΘΚΠ the world > space > shape > unevenness > [adverb] > undulatingly undulatingly1794 undularly1805 1805 T. Weaver tr. A. G. Werner Treat. Fossils 275 1. Spherically..2. Undularly. This entry has not yet been fully updated (first published 1921; most recently modified version published online June 2019). < adj.1738
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