(baseball) A fielding play where the fielders deceive the baserunners as to the location of the ball, allowing one of the fielders to attempt to tag a runner out without the runner being aware of it.

plural of hidden Markov model

plural of hidden-ball trick

A census-designated place in Lake County, California, United States.

past participle of hide one's light under a bushel

In a hidden manner.

(mineralogy) A pale green form of spodumene that is sometimes used as a gemstone.

plural of hiddenite

Most deeply hidden.