(aviation) The airspeed at which an aircraft leaves the runway on takeoff.

(automotive, engineering) Alternative form of V-twin

(aviation) The speed by which a pilot must have decided whether to continue a takeoff or to abort.

All or nothing, all in, for broke; riskily putting everything on the line to either win it all or lose it all.

(chemistry) Distillation under reduced pressure, and thus at a reduced temperature with less risk of thermal degradation

(obsolete) To fade; to vanish.

plural of vacuum pump

(mnemonic) A mnemonic phrase to help remember the order of the seven colours of the rainbow: red, orange, yellow, green, blue, indigo, violet.

(medicine) An infection of cowpox. / (by extension) The virus which causes this infection.

plural of vacuum flask