| / English Dictionary |
HYDROGEN SULFIDE
| Pronunciation (US): |  | (GB): | |
I. (noun)
Sense 1
Meaning:
A sulfide having the unpleasant smell of rotten eggs
Classified under:
Hypernyms ("hydrogen sulfide" is a kind of...):
sulfide; sulphide (a compound of sulphur and some other element that is more electropositive)
Context examples:
This species is nonmotile, non-spore forming, indole positive, produces hydrogen sulfide, hydrolyzes esculin, but not starch, does not reduce nitrate, and is resistant to aminoglycosides and polymyxins.
(Bacteroides splanchnicus, NCI Thesaurus)
The dark spot material may be hydrogen sulfide, with the pungent smell of rotten eggs.
(Hubble Sees Neptune's Mysterious Shrinking Storm, NASA)
This species is motile, non-spore forming, catalase negative, esculin positive, hippurate positive, does not produce hydrogen sulfide, does not reduce nitrate and does not hydrolyze casein, gelatin or urea.
(Enterococcus casseliflavus, NCI Thesaurus)
The scientists determined that restricting these 2 sulfur-containing amino acids activated a metabolic pathway called the transsulfuration pathway, which resulted in increased production of the gas hydrogen sulfide (H2S).
(Pathways Underlying the Benefits of Calorie Restriction, NIH)
This species is motile, spore forming, catalase positive, urease positive, indole negative, produces hydrogen sulfide, reduces nitrate, and hydrolyzes starch and esculin but not casein or gelatin.
(Bacillus lentus, NCI Thesaurus)
This species is nonmotile, non-spore forming, catalase negative, resistant to penicillin, hydrolyzes esculin, indole negative and does not produce hydrogen sulfide.
(Bacteroides caccae, NCI Thesaurus)
This species is nonmotile, non-spore forming, indole positive, produces hydrogen sulfide, does not reduce nitrate, hydrolyzes esculin and starch, does not ferment trehalose, melezitose or arabinose, and is penicillin resistant.
(Bacteroides fragilis, NCI Thesaurus)
This species is spore forming, catalase positive, oxidase negative, indole negative, does not produce hydrogen sulfide, reduces nitrate, and hydrolyzes starch and esculin.
(Bacillus polymyxa, NCI Thesaurus)
This species is nonmotile, non-spore forming, catalase and urease positive, oxidase and indole negative, reduces nitrate and nitrite, hydrolyzes hippurate and starch, but not gelatin or casein, and does not produce hydrogen sulfide.
(Corynebacterium pilosum, NCI Thesaurus)
This species is motile, non-spore forming, catalase, oxidase, urease and indole negative, reduces nitrate, hydrolyzes gelatin and does not produce hydrogen sulfide.
(Capnocytophaga sputigena, NCI Thesaurus)
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