Definition of "observed" in Anglais

verb

1. simple past and past participle of observe

   • Aldrichimica Acta Volume 30 No 4 (pdf) from Sigma-Aldrich N-substituted pyrroles are much less reactive than the other 5-membered 1,3-dienes; no reaction was observed between N-(trimethylsilyl) pyrrole or N-benzylpyrrole with Smith’s diene (4) under thermal or high pressure (4 days at 14 kbar) conditions, even in the presence of Lewis acids.

adjective

1. (of a holiday) Exceptionally celebrated on a date other than the usual date.

   • Sunday, July 1: Canada Day; Monday, July 2: Canada Day observed.