Compound may refer to:
  • Chemical compound
    Chemical compound
    A chemical compound is a pure chemical substance consisting of two or more different chemical elements that can be separated into simpler substances by chemical reactions. Chemical compounds have a unique and defined chemical structure; they consist of a fixed ratio of atoms that are held together...

    s, combinations of two or more elements
  • Compound (enclosure)
    Compound (enclosure)
    Compound when applied to a human habitat refers to a cluster of buildings in an enclosure, having a shared or associated purpose, such as the houses of an extended family...

    , a cluster of buildings having a shared purpose, usually inside a fence or wall
  • Compound (fortification)
    Compound (fortification)
    In military science, a compound is a type of fortification made up of walls or fences surrounding several buildings in the center of a large piece of land...

    , a version of the above fortified with defensive structures
  • Compound bow
    Compound bow
    A compound bow is a modern bow that uses a levering system, usually of cables and pulleys, to bend the limbs.The limbs of a compound bow are much stiffer than those of a recurve bow or longbow. This limb stiffness makes the compound bow more energy-efficient than other bows, in conjunction with the...

    , a type of bow for archery
  • Compound (linguistics)
    Compound (linguistics)
    In linguistics, a compound is a lexeme that consists of more than one stem. Compounding or composition is the word formation that creates compound lexemes...

    , a word that consists of more than one radical element
  • Compound (migrant labour)
    Compound (migrant labour)
    A migrant worker compound is a key institution in a system such as that which regulated labour on mines in South Africa from the later nineteenth century. The tightly controlled closed compound which came to typify the phenomenon in that country originated on the diamond mines of Kimberley from...

    , a hostel for migrant workers such as those historically connected with mines in South Africa
  • Compound (music), an attribute of an interval or time signature
  • Compounding
    Compounding is the mixing of drugs by a compounding pharmacist to fit the unique needs of a patient...

    , the mixing of drugs in pharmacy
  • Polyhedral compound
    Polyhedral compound
    A polyhedral compound is a polyhedron that is itself composed of several other polyhedra sharing a common centre. They are the three-dimensional analogs of polygonal compounds such as the hexagram....

    , a polyhedron composed of multiple polyhedra sharing the same centre of atention

Compound may also refer to:
  • Compound chocolate, a chocolate substitute
  • Compound fracture, complete fractures of bone where at least one fragment has damaged the skin, soft tissue or surrounding body cavity
  • Compound interest
    Compound interest
    Compound interest arises when interest is added to the principal, so that from that moment on, the interest that has been added also itself earns interest. This addition of interest to the principal is called compounding...

    , unpaid interest that is added to the principal so that subsequent interest is calculated on the grossed amount
  • Compound engine, a steam engine in which steam is expanded through a series of two or three cylinders before exhaust.
  • Turbo-compound engine
    Turbo-compound engine
    A turbo-compound engine is a reciprocating engine that employs a blowdown turbine to recover energy from the exhaust gases. The turbine is usually mechanically connected to the crankshaft but electric and hydraulic systems have been investigated as well. The turbine increases the output of the...

    , an internal combustion engine where exhaust gases expand through power-turbine
    A turbine is a rotary engine that extracts energy from a fluid flow and converts it into useful work.The simplest turbines have one moving part, a rotor assembly, which is a shaft or drum with blades attached. Moving fluid acts on the blades, or the blades react to the flow, so that they move and...

  • Compound sentence (linguistics)
    Compound sentence (linguistics)
    A compound sentence is composed of at least two independent clauses. It does not require a dependent clause. The clauses are joined by a coordinating conjunction , a correlative conjunction , a semicolon that functions as a conjunction, or a conjunctive adverb preceded by a semicolon. A conjunction...

    , a type of sentence made up of two or more independent clauses and no subordinate (dependent) clauses
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