Alternative form of middle for diddle

(statistics) Initialism of autoregressive conditional heteroskedasticity

Any fish of the genus Ambloplites, especially of the species Ambloplites rupestris and Ambloplites constellatus. / Epinephelus analogus spotted grouper) / Epinephelus labriformis (starry grouper)

(organic chemistry, especially in combination) A triaryl derivative of a methyl radical