(chemistry) Any of a particular class of thermosetting resin made through the condensation of phenol (or a phenol derivative) with an aldehyde.

(physics) The force that resists the rolling of a wheel or other circular object.

A visa status which allows a person to reside indefinitely in a foreign country without acquiring citizenship in that country

Used to express when someone or something has saved the day, or provided valuable help.

plural of reset button

(electronics) A button that resets something.

(idiomatic) To rescue (or save) someone from further harm.

(computing) A full restore of an electronic device, such as a PDA or a mobile phone, to its original settings.

A self-contained device to generate oxygen for breathing.

A button that resets a device, often a computer.