…denoting quantum states or wave functions which change sign on inversion through the origin…
…(of language or social behaviour) characteristic of or appropriate to the upper social classes…
…a shape like that of a capital U, especially a cross section…
…the chemical element of atomic number 92, a dense grey radioactive metal used as a fuel in nuclear reactors…
…(of language or social behaviour) not characteristic of the upper social classes; not socially acceptable to certain people…
…a section of a pipe, in particular of a waste pipe, shaped like a U…
…the turning of a vehicle in a U-shaped course so as to face in the opposite direction…
…(1909–74), Burmese statesman. He served as the representative of Burma (Myanmar) to the United Nations 1957–61 before becoming UN secretary-general 1961–71. As secretary general, he worked to settle the 1962 Cuban missile crisis diplomatically, to end the Congolese civil war in 1962, and to keep peace in Cyprus in 1964…
…a system for recording and playing audiovisual material and videos, mainly restricted to professional use…
…a herbaceous plant which has jagged leaves covered with stinging hairs…
…a Eurasian nettle covered in minute hairs that inject irritants such as histamine and acetylcholine when they are touched…
…a tall deciduous tree which typically has rough serrated leaves and propagates from root suckers…
…a yellow-flowered shrub of the pea family, the leaves of which are modified to form spines, native to western Europe and North Africa…
…a reddish-brown African waxbill with a red bill and a bright blue rump…
…a plant of the lily family bearing slender yellow bell-like flowers and found chiefly in eastern North America…
…a plant of the lily family bearing slender yellow bell-like flowers and found chiefly in eastern North America…
…a reddish-brown African waxbill with a red bill and a bright blue rump…
