urban
urban: adj. of, living in, or situated in a town or city (an urban population) (opp. RURAL). urban district Brit. hist. a group of urban communities governed by an elected council. urban guerrilla a terrorist operating in an urban area. urban renewal slum clearance and redevelopment in a city or town. urban sprawl the uncontrolled expansion of urban areas. [L urbanus f. urbs urbis city]
upon
upon: prep. = ON. Upon is sometimes more formal, and is preferred in once upon a time and upon my word, and in uses such as row upon row of seats and Christmas is almost upon us. [ME f. UP + ON prep., after ON upp ]
undesirable
undesirable: adj. & n. --adj. not desirable, objectionable, unpleasant. --n. an undesirable person. undesirability n. undesirableness n. undesirably adv.
undertaking
undertaking: n.
1 work etc. undertaken, an enterprise (a serious undertaking).
2 a pledge or promise.
3 the management of funerals as a profession.
umbilicus
umbilicus: n. (pl. umbilici or umbilicuses.
1 Anat. the navel.
2 Bot. & Zool. a navel-like formation.
3 Geom. a point in a surface through which all cross-sections have the same curvature. [L, rel. to Gk omphalos and to NAVEL]
unpaired
unpaired: adj.
1 not arranged in pairs.
2 not forming one of a pair.
university
university: n. (pl. -ies.
1 an educational institution designed for instruction, examination, or both, of students in many branches of advanced learning, conferring degrees in various faculties, and often embodying colleges and similar institutions.
2 the members of this collectively.
3 a team, crew, etc., representing a university. at university studying at a university. [ME f. OF universit f. L universitas -tatis the whole (world), in LL college, guild (as UNIVERSE)]
unobtrusive
unobtrusive: adj. not making oneself or itself noticed. unobtrusively adv. unobtrusiveness n.
unemployment
unemployment: n.
1 the state of being unemployed.
2 the condition or extent of this in a country or region etc. (the North has higher unemployment). unemployment benefit a payment made by the State or (in the US) a trade union to an unemployed person.
uraeus
uraeus: n. the sacred serpent as an emblem of power represented on the head-dress of Egyptian divinities and sovereigns. [mod.L f. Gk ouraios, repr. the Egypt. word for 'cobra']
uterus
uterus: n. (pl. uteri) the womb. uteritis n. [L]
ultimatum
ultimatum: n. (pl. ultimatums or ultimata) a final demand or statement of terms by one party, the rejection of which by another could cause a breakdown in relations, war, or an end of cooperation etc. [L neut. past part.: see ULTIMATE]
underground
underground: adv., adj., n., & v. --adv.
1 beneath the surface of the ground.
2 in or into secrecy or hiding. --adj.
1 situated underground.
2 secret, hidden, esp. working secretly to subvert a ruling power.
3 unconventional, experimental (underground press). --n.
1 an underground railway.
2 a secret group or activity, esp. aiming to subvert the established order. --v.tr. lay (cables) below ground level.
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