family Strigidae
— Noun
– English
~ a family of nocturnal birds of the order Strigiformes
first strike
— Noun
– English
~ the initial use of nuclear weapons to attack a country that also has nuclear weapons; considered feasible only when the attacker can destroy the other country's ability to retaliate; "the Pakistani president promised no first strike against India"
four-stroke internal-combustion engine
— Noun
– English
~ an internal-combustion engine in which an explosive mixture is drawn into the cylinder on the first stroke and is compressed and ignited on the second stroke; work is done on the third stroke and the products of combustion are exhausted on the fourth stroke
four-stroke engine
— Noun
– English
~ an internal-combustion engine in which an explosive mixture is drawn into the cylinder on the first stroke and is compressed and ignited on the second stroke; work is done on the third stroke and the products of combustion are exhausted on the fourth stroke
forehand stroke
— Noun
– English
~ (sports) a return made with the palm of the hand facing the direction of the stroke (as in tennis or badminton or squash)
family Stromateidae
— Noun
– English
~ butterfishes: harvest fishes; dollar fishes