Wavelet n. : A little wave; a ripple.

Example:
Any software that does adaptive Wavelet image compression?

Taxonomy
wavelet, signal, wavelet transforms, scale, frequency, subspace, CWT, discrete wavelet, transforms, wavelet coefficients, filter, mother wavelet, wavelet transform, DWT, frequency band, Fourier Transform, scaling function, Continuous wavelets.

Defination from the web:
wavelet is a wave-like oscillation with an amplitude that starts out at zero, increases, and then decreases back to zero. ... In formal terms, this representation is a wavelet series representation of a square-integrable function with respect to either a complete, ...