(phonetics) The syllable in a word which receives the most stress in an intonation unit.

A form of analysis by mass spectrometry using particle accelerators.

A set of principles and practices through which research outputs are distributed online, free of access charges or other barriers.

plural of access method

plural of accident rate

(nuclear physics) An accidental uncontrolled self-sustaining nuclear fission chain reaction.

(informal) To urinate or defecate somewhere other than a toilet. / Used other than figuratively or idiomatically: see have, accident.

The continuous and roughly simultaneous surge in growth rate across a large range of measures of human activity, first recorded in the mid-20th century.

(automotive, of electrified vehicles) The standard 12V rechargeable automotive lead-acid battery or the stand-in battery for a standard 12V automotive battery found in internal combustion engined vehicles, typically used to power the typical 12V systems, the accessories, infotainment, automotive computer, and electronic systems.