an industrial process for producing ammonia by reacting atmospheric nitrogen with hydrogen at about 200 atmospheres (2 × 107 pascals) and 500°C in the presence of a catalyst, usually iron
[named after Fritz Haber (1868--1934), German chemist]
an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle.
an extraordinary or unusual thing, person, or event; an exceptional example or instance.
a children's mummer's parade, as on the Fourth of July, with prizes for the best costumes.
a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison.
a printed punctuation mark (‽), available only in some typefaces, designed to combine the question mark (?) and the exclamation point (!), indicating a mixture of query and interjection, as after a rhetorical question.