am·bro·type 
(ămbrō-tīp′)
(ămbrō-tīp′)n.
An early type of photograph made by imaging a negative on glass backed by a dark surface.
[Greek ambrotos, immortal; see AMBROSIA + TYPE.]
- unobtrusive
- unobtrusively
- unobtrusiveness
- unoccupied
- unofficial
- unofficially
- unopposed
- unorganized
- unoriginal
- unornamented
- unorthodox
- unorthodoxly
- unorthodoxy
- unostentatious
- unostentatiously
- unpack
- unpacked
- unpaged
- unpaginated
- unpaid
- unpalatability
- unpalatable
- unpalatably
- unparalleled
- unparliamentary