observed
English
Pronunciation
- (General American) IPA(key): /əbˈzɝvd/
- (Received Pronunciation) IPA(key): /əbˈzɜːvd/
Audio (US) (file)
Verb
observed
- simple past tense 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.
- Aldrichimica Acta Volume 30 No 4 (pdf) from Sigma-Aldrich
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