dinor

dinor (plural dinors)

1. (biochemistry) A taraxastane from which two methyl groups have been removed.
   • 1989, Robert George Ackman, Marine Biogenic Lipids, Fats & Oils - Volume 1:

     This is the first example of a dinor-carotenoid to be reported.

   • 2005, K. D. Rainsford, Nimesulide - Actions and Uses, page 160:

     Cullen et al. also measured urinary output on day 14 of TxB₂, and the 11-dehydro-metabolites of TxB₂, as an indication of COX-1 inhibition in vivo and urinary 6-keto-PGF_1α and its 2,3 dinor metabolite, as a marker of COX-2 inhibition in vivo.

   • 2011, Arthur H. Jeske, Mosby's Dental Drug Reference, page 756:

     Metabolized to 1,2-dinor metabolite and 1,2,3,4-tetranor metabolite.

2. (Western Pennsylvania) A diner (small restaurant modeled after a dining car) in northwest Pennsylvania.
   • 1989, Pittsburgh History, page 111:

     It seems that dinors are unique to northwestern Pennsylvania: Erie's 1958 city directory lists 19 dinors compared to two diners

   • 1999, Brian Butko, Kevin Joseph Patrick, Diners of Pennsylvania, page G-200:

     The immediate Erie area still has five dinors—Girard, Haggerty's, Park, Peninsula, and Russ's.

   • 2008, Michael Engle, Mario Monti, Diners of New York:

     It has been said in these areas that when you go out to eat, you are a “diner,” but you eat in a “dinor.”

   • 2010, Lew Bryson -, Pennsylvania Breweries, page 272:

     The Northwest Corner may have plenty of regional specialties, but the only one I found was bumbleberry pie, a pie we saw at any number of dinors—that's not a typo, that's how "diner" is spelled in the Erie corner.

• nidor