u1
/juː
/abbreviation Physics
Denoting quantum states or wave functions which change sign on inversion through the origin. The opposite of g.
From German ungerade 'odd'
symbol [in combination]
(In units of measurement) micro- (10−6): direct read-out of concentration in ug or mg/l
Substituted for mu
U2
/juː/(also u)
noun (plural Us or U's)
1The twenty-first letter of the alphabet.
1.1Denoting the next after T in a set of items, categories, etc.
2 (U) A shape like that of a capital U, especially a cross section: [in combination]: U-shaped glaciated valleys
U3
/juː/abbreviation
1(In names of sports clubs) United: Oxford U
2British Universal (denoting films classified as suitable without restriction).
3Uruguay (international vehicle registration).
4 (also u) informal You: what will u do next?
symbol
The chemical element uranium.
U4
/juː/adjective British informal
(Of language or social behaviour) characteristic of or appropriate to the upper social classes: U manners
Origin
1950s: abbreviation of upper class; coined in 1954 by Alan S. C. Ross, professor of linguistics, the term was popularized by its use in Nancy Mitford's Noblesse Oblige (1956).
U5
/uː/noun
A Burmese title of respect before a man’s name, equivalent to Mr: U Thien San
- reflectance
- reflectant
- reflected glory
- reflectedly
- reflectent
- reflecter
- reflectibility
- reflectible
- reflecting circle
- reflecting glass
- reflecting telescope
- reflection
- reflectional
- reflection coefficient
- reflection factor
- reflectioning
- reflectionist
- reflectionless
- reflection nebula
- reflection oscillator
- reflection profiling
- reflection shooting
- reflection spectroscopy
- reflective
- reflectively