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performing or functioning in the best possible manner with the least waste of time and effort; having and using requisite knowledge, skill, and industry; competent; capable:
a reliable, efficient assistant.
satisfactory and economical to use:
Our new air conditioner is more efficient than our old one.
producing an effect, as a cause; causative.
utilizing a particular commodity or product with the least waste of resources or effort (usually used in combination):
a fuel-efficient engine.
functioning or producing effectively and with the least waste of effort; competent
(philosophy) producing a direct effect; causative


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    noun, plural superegos. Psychoanalysis. 1. the part of the personality representing the conscience, formed in early life by internalization of the standards of parents and other models of behavior. noun (pl) -gos 1. (psychoanal) that part of the unconscious mind that acts as a conscience for the ego, developing mainly from the relationship between a […]

  • Superelastic

    adjective 1. capable of returning to its original length, shape, etc., after being stretched, deformed, compressed, or expanded: an elastic waistband; elastic fiber. 2. spontaneously expansive, as gases. 3. flexible; accommodating; adaptable; tolerant: elastic rules and regulations. 4. springing back or rebounding; springy: He walks with an elastic step. 5. readily recovering from depression or […]

  • Superelevated

    [soo-per-el-uh-vey-tid] /ˌsu pərˈɛl əˌveɪ tɪd/ adjective, Civil Engineering. 1. (of a curve in a road, railroad track, etc.) banked.

  • Superelevation

    [soo-per-el-uh-vey-shuh n] /ˌsu pərˌɛl əˈveɪ ʃən/ noun 1. bank1 (def 6). superelevation /ˌsuːpərˌɛlɪˈveɪʃən/ noun 1. another name for bank2 (sense 7) 2. the difference between the heights of the sides of a road or railway track on a bend

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