active principle

  • 1active principle — any constituent of a drug that helps to confer upon it a medicinal property …

    Medical dictionary

  • 2Principle — Prin ci*ple, n. [F. principe, L. principium beginning, foundation, fr. princeps, cipis. See {Prince}.] 1. Beginning; commencement. [Obs.] [1913 Webster] Doubting sad end of principle unsound. Spenser. [1913 Webster] 2. A source, or origin; that… …

    The Collaborative International Dictionary of English

  • 3Principle of contradiction — Principle Prin ci*ple, n. [F. principe, L. principium beginning, foundation, fr. princeps, cipis. See {Prince}.] 1. Beginning; commencement. [Obs.] [1913 Webster] Doubting sad end of principle unsound. Spenser. [1913 Webster] 2. A source, or… …

    The Collaborative International Dictionary of English

  • 4active — active, operative, dynamic, live are synonymous when they mean being at work or in effective action. Active in general may be employed wherever the others are applicable, but it is also usable where none of the others would be appropriate. It may …

    New Dictionary of Synonyms

  • 5principle — [prin′sə pəl] n. [ME, altered < MFr principe < L principium: see PRINCIPIUM] 1. the ultimate source, origin, or cause of something 2. a natural or original tendency, faculty, or endowment 3. a fundamental truth, law, doctrine, or motivating …

    English World dictionary

  • 6principle — 1. A general or fundamental doctrine or tenet. SEE ALSO: law, rule, theorem. 2. The essential ingredient in a substance, especially one that gives it its distinctive quality or effect. [L. principium, a beginning, fr. princeps, chief] active p. a …

    Medical dictionary

  • 7Active stretching — eliminates force and its adverse effects from stretching procedures.Before describing the principles on which active stretching is based, the terms agonist and antagonist must be clarified. Agonist refers to actively contracting muscle or muscles …

    Wikipedia

  • 8Active dynamic filtering — Active dynamic filtering, ADF, is a three phase power electronics based power flow control technology that can effectively be used to isolate and remove electrical behaviours that cause excess losses and disruptions in the electrical… …

    Wikipedia

  • 9Active power conditioner — (active power filters) refers to power electronic devices that are used in industry or commercial facilities to improve electrical power quality and remove behaviours that cause losses and disruptions, such as harmonics, reactive power, flicker… …

    Wikipedia

  • 10principle — ► NOUN 1) a fundamental truth or proposition serving as the foundation for belief or action. 2) a rule or belief governing one s personal behaviour. 3) morally correct behaviour and attitudes. 4) a general scientific theorem or natural law. 5) a… …

    English terms dictionary