18-letter words containing o, z, a, e
- przewalski's horse — a wild horse, Equus caballus przevalskii, chiefly of Mongolia and Sinkiang, characterized by light yellow coloring and a stiff, upright black mane with no forelock: the only remaining breed of wild horse, it is now endangered and chiefly maintained in zoos.
- quartz-iodine lamp — a type of tungsten-halogen lamp containing small amounts of iodine and having a quartz envelope, operating at high temperature and producing an intense light for use in car headlamps, etc
- recharacterization — portrayal; description: the actor's characterization of a politician.
- self-actualization — the achievement of one's full potential through creativity, independence, spontaneity, and a grasp of the real world.
- self-fertilization — Botany. fertilization of an ovum of a plant by a male gamete from the same flower (opposed to cross-fertilization).
- sign of the zodiac — one of the twelve constellations along the path of the ecliptic.
- take cognizance of — note, acknowledge
- territorialization — to extend by adding new territory.
- waste minimization — a policy of generating as little waste as possible
- zone of saturation — the ground below the water table