Term: fossil fuel: fuel consisting of the remains of organisms preserved in rocks in the earth's crust with high carbon and hydrogen content
Broader: substance: a particular kind or species of matter with uniform properties | Unrelated: curvature: the property possessed by the curving of a line or surface
Broader: substance: a particular kind or species of matter with uniform properties | Unrelated: daybook: a ledger in which transactions have been recorded as they occurred
Broader: substance: a particular kind or species of matter with uniform properties | Unrelated: mother: a term of address for a mother superior
Broader: substance: a particular kind or species of matter with uniform properties | Unrelated: inhalation anesthesia: general anesthesia achieved by administration of an inhalation anesthetic
Broader: substance: a particular kind or species of matter with uniform properties | Unrelated: usher: an official stationed at the entrance of a courtroom or legislative chamber
Broader: substance: a particular kind or species of matter with uniform properties | Unrelated: gassing: the process of interacting with gas
Broader: substance: a particular kind or species of matter with uniform properties | Unrelated: dosemeter: a measuring instrument for measuring doses of ionizing radiation (X-rays or radioactivity)
Broader: substance: a particular kind or species of matter with uniform properties | Unrelated: coronary heart disease: a heart disease due to an abnormality of the arteries that supply blood and oxygen to the heart
Broader: substance: a particular kind or species of matter with uniform properties | Unrelated: davenport: a large sofa usually convertible into a bed
Broader: substance: a particular kind or species of matter with uniform properties | Unrelated: sixteenth: position 16 in a countable series of things