# well-defined

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**Well-formed formula**— In mathematical logic, a well formed formula (often abbreviated WFF, pronounced wiff or wuff ) is a symbol or string of symbols (a formula) that is generated by the formal grammar of a formal language. To say that a string S is a WFF with respect …42

**well put**— {adj. phr.} Well expressed or defined. * /His remarks about too much violence on television were extremely well put./ …43

**well put**— {adj. phr.} Well expressed or defined. * /His remarks about too much violence on television were extremely well put./ …44

**well\ put**— adj. phr. Well expressed or defined. His remarks about too much violence on television were extremely well put …45

**defined benefit plan**— A type of occupational pension in which the pension provision is defined (e.g., a fixed monthly amount for each year of service) and guaranteed. The employer has to make up the difference if the scheme fails to perform as well as expected.… …46

**Boolean algebras canonically defined**— Boolean algebras have been formally defined variously as a kind of lattice and as a kind of ring. This article presents them more neutrally but equally formally as simply the models of the equational theory of two values, and observes the… …47

**Delta potential well**— The Delta potential well is a common theoretical problem of quantum mechanics. It consists of a time independent Schrödinger equation for a particle in a potential well defined by a delta function in one dimension.DefinitionThe time independent… …48

**ill-defined**— adjective poorly stated or described he confuses the reader with ill defined terms and concepts • Syn: ↑unclear • Ant: ↑well defined • Derivationally related forms: ↑unclearness (for: ↑ …49

**Oil well control**— is the management of the dangerous effects caused by unexpected high pressures upon surface equipment of oil or gas drilling rigs. Technically, oil well control involves preventing Formation fluid, usually referred to as kick, from entering into… …50

**Software-defined radio**— A Software Defined Radio (SDR) system is a radio communication system where components that have typically been implemented in hardware (i.e. mixers, filters, amplifiers, modulators/demodulators, detectors. etc.) are instead implemented using… …