btu

As a noun kilocalories

is .

Btu is likely misspelled.

Btu has no English definition.

As a noun joule is

in the International System of Units, the derived unit of energy, work and heat; the work required to exert a force of one newton for a distance of one metre. Also equal to the energy of one watt of power for a duration of one second. Symbol: J.

As a noun tons

is .

As a verb tona is

to thunder.

Btu is likely misspelled.

Btu has no English definition.

As a noun calorie is

(physics and chemistry, obsolete) The gram calorie or small calorie, a non-SI unit of energy, equivalent to approximately 4.2 joules. This unit was widely used in chemistry and physics, being the amount of energy needed to raise the temperature of 1 gram of water by 1 °C.

As a noun taxonomy

is the science or the technique used to make a classification.