a black colloidal substance consisting wholly or principally of amorphous carbon and used to make pigments and ink
soot
Verb
coat with soot
shuck
Noun
material consisting of seed coverings and small pieces of stem or leaves that have been separated from the seeds
shuck
Verb
remove the shucks from
shuck
Verb
remove from the shell
starting buffer
Noun
buffer solution at the start of a reaction
semiconducting material
Noun
a substance as germanium or silicon whose electrical conductivity is intermediate between that of a metal and an insulator
sewage
Noun
waste matter carried away in sewers or drains
sewer water
Noun
water mixed with waste matter
scraps
Noun
food that is discarded (as from a kitchen)
scrap metal
Noun
discarded metal suitable for reprocessing
sandpaper
Noun
stiff paper coated with powdered emery or sand
sandpaper
Verb
rub with sandpaper
sodium cyanide
Noun
a white poisonous salt (NaCN) used in electroplating
soft coal
Noun
rich in tarry hydrocarbons
sea coal
Noun
pulverized bituminous coal
steam coal
Noun
coal suitable for use under steam boilers
shite
Noun
obscene terms for feces
shite
Adjective
bad or awful
sienna
Noun
an earth color containing ferric oxides
sinopis
Noun
a red ocher formerly used as a pigment
sinopia
Noun
a red ocher formerly used as a pigment
sticky end
Noun
an end of DNA in which one strand of the double helix extends a few units beyond the other
sinoper
Noun
a red ocher formerly used as a pigment
saprolite
Noun
a deposit of clay and disintegrating rock that is found in its original place
soil conditioner
Noun
a chemical substance used to improve the structure of the soil and increase its porosity
schist
Noun
any metamorphic rock that can be split into thin layers
soft glass
Noun
glass having a relatively low softening point
safety glass
Noun
glass made with plates of plastic or resin or other material between two sheets of glass to prevent shattering
shatterproof glass
Noun
glass made with plates of plastic or resin or other material between two sheets of glass to prevent shattering
short-staple cotton
Noun
cotton with relatively short fibers
soluble glass
Noun
a viscous glass consisting of sodium silicate in solution
sodium silicate
Noun
a viscous glass consisting of sodium silicate in solution
stained glass
Noun
glass that has been colored in some way
soldering flux
Noun
flux applied to surfaces that are to be joined by soldering
sodium nitrate
Noun
(NaNO3) used especially as a fertilizer and explosive
soda niter
Noun
(NaNO3) used especially as a fertilizer and explosive
spirit of turpentine
Noun
volatile liquid distilled from turpentine oleoresin
saltpeter
Noun
A chemical compound, KNO3, used especially as a fertilizer and explosive
saltpetre
Noun
(KNO3) used especially as a fertilizer and explosive
saponin
Noun
any of various plant glucosides that form soapy lathers when mixed and agitated with water
spreading factor
Noun
an enzyme (trade name Hyazyme) that splits hyaluronic acid and so lowers its viscosity and increases the permeability of connective tissue and the absorption of fluids
steel grey
Noun
slightly purplish or bluish dark grey
steel gray
Noun
slightly purplish or bluish dark grey
sterculia gum
Noun
exudate of an Asian tree
synthetic substance
Noun
a compound made artificially by chemical reactions
synthetic resin
Noun
a resin having a polymeric structure
slaked lime
Noun
a caustic substance produced by heating limestone
sodium thiosulphate
Noun
a compound used as a fixing agent in photographic developing
sodium thiosulfate
Noun
a compound used as a fixing agent in photographic developing