(organic chemistry) A heterocycle 1,4-diazacycloheptane formally derived from a piperazine by introduction of a methylene group in the ring

A city in San Bernardino County, California, United States.

(vulgar) Expression of worry, failure, shock, etc., often at something seen for the first time or remembered immediately before using this term. / (vulgar) Used to show displeasure or surprise.

In terms of, or by means of, imitation.