any of the more than 100 known substances (of which 92 occur naturally) that cannot be separated into simpler substances and that singly or in combination constitute all matter
a volatile flammable mixture of hydrocarbons (hexane and heptane and octane etc.) derived from petroleum; used mainly as a fuel in internal-combustion engines
an abundant nonmetallic tetravalent element occurring in three allotropic forms: amorphous carbon and graphite and diamond; occurs in all organic compounds
the part of a contract that contains reservations and qualifications that are often printed in small type; "don't sign a contract without reading the fine print"
perceptible by the senses especially the sense of touch; "skin with a tangible roughness"
(of especially business assets) having physical substance and intrinsic monetary value ; "tangible property like real estate"; "tangible assets such as machinery"
(law) an explanation of the fundamental reasons (especially an explanation of the working of some device in terms of laws of nature); "the rationale for capital punishment"; "the principles of internal-combustion engines"