Definition of "wavelet"

I know not whether / I see your meaning: if I do, it lies / Upon the wordy wavelets of your voice, / Dim as an evening shadow in a brook, / When the least moon has silver on’t no larger / Than the pure white of Hebe’s nail.

1851, “Speaker’s Meaning dimly descried” (Fragment) in Poems, London: William Pickering, p. 110

[…] long ground-swells roll the slanting grain, and little wavelets of grass ripple over upon the low piazza, as their beach, and the blown down of dandelions is wafted like the spray […]

1856, Herman Melville, “The Piazza” in The Piazza Tales, New York: Dix & Edwards, pp. 6-7

The water danced and sparkled, multitudes of birds were on the wing, now dipping in the wavelets, now rising and shaking off the glittering drops.

1880, Sabine Baring-Gould, chapter 4, in Mehalah: A Story of the Salt Marshes‎, London: Smith, Elder & Co., published 1884, page 46

A little, rubbishy wavelet, full of candy wrappers and orange peel and seaweed, folded over my foot.

1963, Sylvia Plath, chapter 13, in The Bell Jar, London: Faber & Faber, published 1971

They left the shop in a united wavelet of amusement […]

1965, Muriel Spark, chapter 3, in The Mandelbaum Gate, London: Macmillan