effective
1Effective — Ef*fect ive, a. [L. effectivus: cf. F. effectif.] Having the power to produce an effect or effects; producing a decided or decisive effect; efficient; serviceable; operative; as, an effective force, remedy, speech; the effective men in a regiment …
2Effective — Ef*fect ive, n. 1. That which produces a given effect; a cause. Jer. Taylor. [1913 Webster] 2. One who is capable of active service. [1913 Webster] He assembled his army 20,000 effectives at Corinth. W. P. Johnston. [1913 Webster] 3. [F. effectif …
3effective — I. adjective Date: 14th century 1. a. producing a decided, decisive, or desired effect < an effective policy > b. impressive, striking < a gold lamé fabric studded with effective…precious stones Stanley Marcus > 2. ready for service or action < …
4effective — effectively, adv. effectiveness, effectivity, n. /i fek tiv/, adj. 1. adequate to accomplish a purpose; producing the intended or expected result: effective teaching methods; effective steps toward peace. 2. actually in operation or in force;… …
5Effective medium approximations — or effective medium theory (sometimes abbreviated as EMA or EMT) are physical models that describe the macroscopic properties of a medium based on the properties and the relative fractions of its components. They can be discrete models such as… …
6Effective atomic number — has two different meanings: one that is the effective nuclear charge of an atom, and one that calculates the average atomic number for a compound or mixture of materials. Both are abbreviated Zeff.For an atomThe effective atomic number Zeff,… …
7Effective nuclear charge — Diagram The effective nuclear charge is the net positive charge experienced by an electron in a multi electron atom. The term effective is used because the shielding effect of negatively charged electrons prevents higher orbital electrons from… …
8Effective number of codons — (abbreviated as ENC or Nc ) is a measure to study the state of Codon usage biases in genes and genomes [cite journal |author=Wright F. |title=The effective number of codons used in a gene. |journal=Gene |volume=87 |issue=1 |pages=23–29 |year=1990 …
9effective date — The date at which a contract or statutory obligation commences. The effective date may be different than the date a contract is signed or a statute is enacted. For example, the effective date for the Copyright Act of 1976 is January 1, 1978.… …
10Effective microorganism — Effective Microorganisms™, also called EM Technology™, is a brand name for a series of products utilizing a base culture called EM•1® Microbial Inoculant. EM Technology™ is an as yet scientifically unconfirmed method of improving soil quality and …
