|
|
filtrate |
Noun
|
the product of filtration |
|
|
filtrate |
Verb
|
remove by passing through a filter |
|
|
flint glass |
Noun
|
optical glass of high dispersion and high refractive index |
|
|
firelighter |
Noun
|
(a piece of) a substance that burns easily and can be used to start a coal or coke fire |
|
|
fire opal |
Noun
|
an opal with flaming orange and yellow and red colors |
|
|
fish-liver oil |
Noun
|
a fatty oil obtained from the livers of various fish |
|
|
fish oil |
Noun
|
a fatty oil obtained from the livers of various fish |
|
|
fixing agent |
Noun
|
a chemical compound that sets or fixes something (as a dye or a photographic image) |
|
|
flavone |
Noun
|
a colorless crystalline compound that is part of a number of white or yellow plant pigments |
|
|
fencing material |
Noun
|
material for building fences |
|
|
flavonoid |
Noun
|
any of a large class of plant pigments having a chemical structure based on or similar to flavone |
|
|
ferrite |
Noun
|
a solid solution in which alpha iron is the solvent |
|
|
fertilizer |
Noun
|
any substance such as manure or a mixture of nitrates used to make soil more fertile |
|
|
fertiliser |
Noun
|
any substance such as manure or a mixture of nitrates used to make soil more fertile |
|
|
flavin |
Noun
|
a ketone that forms the nucleus of certain natural yellow pigments like riboflavin |
|
|
flintstone |
Noun
|
pebbles of flint used in masonry construction |
|
|
floor wax |
Noun
|
a preparation containing wax and used to polish and preserve the finish of floors |
|
|
foryml |
Noun
|
(chemistry) the negative univalent acyl radical CHO that occurs in aldehydes |
|
|
fluoride |
Noun
|
a salt of hydrofluoric acid |
|
|
fluoroboric acid |
Noun
|
an acid of fluorine and boron |
|
|
fluoroboride |
Noun
|
a salt of fluoroboric acid |
|
|
fluorocarbon |
Noun
|
a halocarbon in which some hydrogen atoms have been replaced by fluorine |
|
|
fluosilicate |
Noun
|
salt of fluosilicic acid |
|
|
fluosilicic acid |
Noun
|
an unstable poisonous corrosive acid known primarily in the form of its salts |
|
|
flypaper |
Noun
|
paper that is poisoned or coated with a sticky substance to kill flies |
|
|
foam rubber |
Noun
|
spongy rubber |
|
|
formaldehyde |
Noun
|
a colorless poisonous gas |
|
|
formic acid |
Noun
|
a colorless pungent fuming vesicatory liquid acid HCOOH found naturally in ants and many plants or made catalytically from carbon monoxide and steam |
|
|
frankincense |
Noun
|
an aromatic gum resin obtained from various Arabian or East African trees |
|
|
free radical |
Noun
|
an atom or group of atoms with at least one unpaired electron |
|
|
freezing mixture |
Noun
|
a mixture of substances (usually salt and ice) to obtain a temperature below the freezing point of water |
|
|
fructose |
Noun
|
a simple sugar found in honey and in many ripe fruits |
|
|
fruit sugar |
Noun
|
a simple sugar found in honey and in many ripe fruits |
|
|
fossil copal |
Noun
|
partly mineralized copal dug from the ground |
|
|
fuel |
Noun
|
a substance that can be consumed to produce energy |
|
|
fuel |
Verb
|
stimulate |
|
|
fuel |
Verb
|
take in fuel, as of a ship |
|
|
fuel |
Verb
|
provide with a combustible substance that provides energy |
|
|
fuel |
Verb
|
provide with fuel |
|
|
fuller's earth |
Noun
|
an absorbent soil resembling clay |
|
|
fulvic acid |
Noun
|
a yellow to yellow-brown humic substance that is soluble in water under all pH conditions |
|
|
fumaric acid |
Noun
|
a colorless crystalline acid with a fruity taste |
|
|
fumigant |
Noun
|
a chemical substance used in fumigation |
|
|
furan |
Noun
|
a colorless toxic flammable liquid used in the synthesis of nylon |
|
|
furane |
Noun
|
a colorless toxic flammable liquid used in the synthesis of nylon |
|
|
furfuran |
Noun
|
a colorless toxic flammable liquid used in the synthesis of nylon |
|
|
furfural |
Noun
|
a liquid aldehyde with a penetrating odor |
|
|
furfuraldehyde |
Noun
|
a liquid aldehyde with a penetrating odor |
|
|
facial tissue |
Noun
|
tissue paper suitable for use on the face |
|
|
feldspar |
Noun
|
any of a group of hard crystalline minerals that consist of aluminum silicates of potassium or sodium or calcium or barium |