a voltaic cell consisting of two metal electrodes connected by an electrolyte

(chemistry) A process, typically involving the breaking or making of interatomic bonds, in which one or more substances are changed into others.

Noticeably happy and optimistic. / Bright and pleasant.

(informal) Economically, especially if too economically.

In very close physical proximity, crowded together. / (by extension) In very close or intimate association.

Tightly packed.

(Canada, US, euphemistic, slang) To fart (flatulate). / Used other than figuratively or idiomatically: see cut, cheese.

A sheet of paper containing notes used to assist (with or without permission) on a test. / (idiomatic) Any summary or quick reference used as a shortcut or reminder, such as an aid for public speaking.

(countable and uncountable) A pie made of sweetened and flavoured cottage cheese or cream cheese, eggs and milk on a crunchy base.

(chemistry) Any one of the simplest chemical substances that cannot be decomposed in a chemical reaction. Chemical elements consist of atoms which have the same number of protons.