Library / English Dictionary

SULFIDE

Pronunciation (US):

(GB):

 I. (noun) 

Sense 1

Meaning:

A compound of sulphur and some other element that is more electropositive

Synonyms:

sulfide; sulphide

Classified under:

Nouns denoting substances

Hypernyms ("sulfide" is a kind of...):

chemical compound; compound ((chemistry) a substance formed by chemical union of two or more elements or ingredients in definite proportion by weight)

Meronyms (substance of "sulfide"):

atomic number 16; S; sulfur; sulphur (an abundant tasteless odorless multivalent nonmetallic element; best known in yellow crystals; occurs in many sulphide and sulphate minerals and even in native form (especially in volcanic regions))

Hyponyms (each of the following is a kind of "sulfide"):

pyrites (any of various metallic-looking sulfides (of which pyrite is the commonest))

hydrogen sulfide (a sulfide having the unpleasant smell of rotten eggs)

iron disulfide (a compound containing two atoms of sulfur combined with iron)

cadmium sulfide (a yellow sulfide used chiefly as a pigment)

zinc sulfide; zinc sulphide (a yellow to white crystalline fluorescent compound that occurs naturally as sphalerite or wurtzite and is used as a luminous pigment)

Credits

 Context examples: 

This species is nonmotile, non-spore forming, catalase positive, urease positive, pyrazinamidase positive, does not reduce nitrate, indole negative, non-lipophilic, ferments glucose, does not produce hydrogen sulfide, and does not hydrolyze gelatin.

(Corynebacterium renale, 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 by peritrichous flagella, citrate, indole and adonitol positive, hydrogen sulfide negative in Kliger's agar, phenylalanine negative and does not grow in KCN medium.

(Citrobacter farmeri, NCI Thesaurus)

This species is nonmotile, non-spore forming, catalase positive, reduces nitrate, does not produce hydrogen sulfide, non-lipophilic, and is indole negative.

(Corynebacterium matruchotii, NCI Thesaurus)

Calcium sulfide is a known carcinogen and is associated with an elevated risk of developing lung cancer.

(Cadmium Sulfide, NCI Thesaurus)

This species is motile using a single polar flagellum, oxidase positive, catalase positive, indole negative, reduces nitrates, and does not produce hydrogen sulfide.

(Campylobacter fetus, NCI Thesaurus)

This species is nonmotile, non-spore forming, urease positive, catalase negative, oxidase positive, does not produce indole, hydrolyzes gelatin and casein but not starch, reduces nitrate, produces hydrogen sulfide, and does not ferment carbohydrates.

(Bacteroides ureolyticus, 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 positive, indole and lipase negative, stimulated by bile, reduces nitrate, produces hydrogen sulfide, does not hydrolyze starch or esculin, and most strains are urease positive.

(Bilophila wadsworthia, 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)