Associations to the word «Sulfur»

SULFUR, noun. (uncountable) A chemical element (symbol S) with an atomic number of 16.

SULFUR, noun. (countable) (uncountable) A yellowish green colour, like that of sulfur.

SULFUR, adjective. Of a yellowish green colour, like that of sulfur.

SULFUR, verb. (transitive) To treat with sulfur, or a sulfur compound, especially to preserve or to counter agricultural pests.

SULFUR ACID, noun. Sulfuric acid

SULFUR ALCOHOL, noun. A thiol or mercaptan

SULFUR BACTERIA, noun. Plural of sulfur bacterium

SULFUR BACTERIUM, noun. Any of several bacteria which oxidize inorganic sulfur compounds, especially those bacteria of the genus Thiobacillus

SULFUR BATH, noun. A curative bath in which the water used has sulfates dissolved in it; especially one in which the source of the water is a natural hot spring

SULFUR BUTTERFLY, noun. The cloudless sulfur

SULFUR CANDLE, noun. (American spelling) A candle-shaped device that emits sulfur dioxide when burnt; used to fumigate rooms

SULFUR CANDLES, noun. Plural of sulfur candle

SULFUR CAST, noun. A cast made by pouring prill sulfur into a depression; used forensically to take casts of prints in snow

SULFUR COCKATOO, noun. The sulfur-crested cockatoo

SULFUR CONE, noun. A conical deposit of sulfur condensed from a fumarole

SULFUR CYCLE, noun. (chemistry) (biochemistry) the natural cycle which includes the mineralization of organic sulfur to sulfide, oxidation of this to sulfate, and reduction of this to sulfide followed by microbial incorporation of this into organic compounds

SULFUR DIBROMIDE, noun. (chemistry) a gaseous binary compound, SBr2, of sulfur and bromine

SULFUR DIOXIDE, noun. (American spelling) (inorganic compound) A toxic gas, of molecular formula SO2 that is found in the emissions of volcanos and those of burning coal or petroleum; dissolves in water to form sulfurous acid and, in the presence of oxygen, sulfuric acid, and is thus responsible for acid rain.

SULFUR ETHER, noun. (chemistry) a thioether

SULFUR FUNGUS, noun. A yellow fungus of the phylum Basidiomycetes, which grows on the sides of trees and can reach several metres in width; it is edible when small.

SULFUR HEXAFLUORIDE, noun. (chemistry) a gaseous binary compound, SF6, of sulfur and fluorine, used in the electricity industry as a dielectric

SULFUR IMPRESSION, noun. A sulfur cast

SULFUR MATCH, noun. A match whose head consists of a mixture containing sulfur; a small amount of phosphorus is included either on the match, or on a striking surface in the case of a safety match

SULFUR MONOXIDE, noun. (inorganic compound) An unstable binary compound, SO, of sulfur and oxygen.

SULFUR MUSTARD, noun. A technical term for mustard gas.

SULFUR NITRIDE, noun. (chemistry) a simple binary compound of sulfur and nitrogen, S4N4, having a ring structure; it is explosive

SULFUR NITRIDE, noun. (chemistry) an inorganic polymer, [SN]n, that has metallic properties

SULFUR ORE, noun. Any ore containing elemental sulfur, or a sulfide from which it may be obtained

SULFUR OXIDE, noun. (chemistry) Any binary compound of sulfur and oxygen; either sulphur monoxide, sulfur dioxide or sulfur trioxide.

SULFUR OXIDES, noun. Plural of sulfur oxide

SULFUR PARAKEET, noun. The ring-necked parakeet, Psittacula krameri

SULFUR PEARL, noun. Alternative spelling of sulphur pearl

SULFUR PRINT, noun. A technique used to examine the surface of a metal for sulfide inclusions

SULFUR PYRITES, noun. The mineral pyrite

SULFUR RAIN, noun. Rain that has a pale yellow colour caused by impurities picked up by the falling raindrops

SULFUR SALT, noun. Salt with about 3% added sulfur; supplied in blocks as a feed supplement for cattle and sheep

SULFUR SHOWER, noun. A shower bath using sulfurous water, especially as part of a curative therapy

SULFUR SOAP, noun. A soap containing up to 10% of added sulfur, used as an antiseptic or antifungal treatment

SULFUR SPRING, noun. (American spelling) a spring of naturally sulfurous water, often of volcanic origin and therefore hot

SULFUR TREE, noun. Any tree whose branches are covered with yellow club moss spores

SULFUR TRIOXIDE, noun. (inorganic compound) A corrosive liquid, SO3, which forms sulfuric acid on contact with water; made commercially by the oxidation of sulfur dioxide.

SULFUR TUFT, noun. (mushroom) A yellow poisonous fungus, Hypholoma fasciculare (= Naematoloma fasciculare).

SULFUR TUFTS, noun. Plural of sulfur tuft

SULFUR WEED, noun. Sulphurwort

SULFUR WORKS, proper noun. An array of geothermal vents in the Lassen Volcanic National Park, California

SULFUR YELLOW, noun. A yellow colour similar to that of the element sulfur

SULFUR, noun. 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).

SULFUR, verb. Treat with sulphur in order to preserve; "These dried fruits are sulphured".