excess


excess
That which is more than the usual or specified amount.
- antibody e. in a precipitation test, the presence of antibody in an amount greater than that required to combine with all of the antigen present. See prozone.
- antigen e. 1. in a precipitation test, the presence of uncombined antigen above that required to combine with all of the antibody; precipitation may be inhibited because the presence of e. antigen gives rise to soluble antigen-antibody complexes; 2. in vivo the resultant antigen-antibody interaction in such an antigen e. may give rise to immune complexes, which have a potential to induce cellular damage; could be tolerogenic.
- base e. a measure of metabolic alkalosis, usually predicted from the Siggaard-Andersen nomogram; the amount of strong acid that would have to be added per unit volume of whole blood to titrate it to pH 7.4 while at 37°C and at a carbon dioxide pressure of 40 mm Hg.
- convergence e. that condition in which an esophoria or esotropia is greater for near vision than for far vision.
- negative base e. a measure of metabolic acidosis, usually predicted from the Siggaard-Andersen nomogram; the amount of strong alkali that would have to be added per unit volume of whole blood to titrate it to pH 7.4 while at 37°C and at a carbon dioxide pressure of 40 mm Hg.

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ex·cess (ek-sesґ) (ekґses) the state of exceeding that which is normal, sufficient, or needed; superfluous.

Medical dictionary. 2011.

Synonyms:

Look at other dictionaries:

  • Excess — Ex*cess , n. [OE. exces, excess, ecstasy, L. excessus a going out, loss of self possession, fr. excedere, excessum, to go out, go beyond: cf. F. exc[ e]s. See {Exceed}.] 1. The state of surpassing or going beyond limits; the being of a measure… …   The Collaborative International Dictionary of English

  • excess — ex·cess adj: more than a usual or specified amount; specif: additional to an amount specified under another insurance policy excess coverage excess insurance Merriam Webster’s Dictionary of Law. Merriam Webster. 1996 …   Law dictionary

  • excess — n Excess, superfluity, surplus, surplusage, overplus denote something which goes beyond a limit or bound. Excess applies to whatever exceeds a limit, measure, bound, or accustomed degree {in measure rein thy joy; scant this excess Shak.} {the… …   New Dictionary of Synonyms

  • Excess-3 — binary coded decimal (XS 3), also called biased representation or Excess N, is a numeral system used on some older computers that uses a pre specified number N as a biasing value. It is a way to represent values with a balanced number of positive …   Wikipedia

  • excess — [ek ses′, ikses′; ] also, esp.for adj. [, ek′ses΄] n. [ME & OFr exces < L excessus < pp. of excedere: see EXCEED] 1. action or conduct that goes beyond the usual, reasonable, or lawful limit 2. lack of moderation; intemperance;… …   English World dictionary

  • Excess — is a state of something being present beyond a requisite amount. In certain contexts, it has a more specialized meaning:* In insurance, similar to deductible. * In chemistry, describing any reagent that is not the limiting reagent. * Excess is… …   Wikipedia

  • excess — (n.) late 14c., from O.Fr. exces (14c.) excess, extravagance, outrage, from L. excessus departure, a going beyond the bounds of reason or beyond the subject, from stem of excedere to depart, go beyond (see EXCEED (Cf. exceed)). As an adjective… …   Etymology dictionary

  • excess — [n1] overabundance of something balance, by product, enough, exorbitance, exuberance, fat, fulsomeness, glut, inundation, lavishness, leavings, leftover, luxuriance, nimiety, overdose, overflow, overkill, overload, overmuch, overrun, oversupply,… …   New thesaurus

  • excess — ► NOUN 1) an amount that is more than necessary, permitted, or desirable. 2) lack of moderation, especially in eating or drinking. 3) (excesses) outrageous or immoderate behaviour. 4) Brit. a part of an insurance claim to be paid by the insured.… …   English terms dictionary

  • excess — in an insurance policy, excess clauses specify that the policyholder will be responsible for a portion of claims under certain conditions. Glossary of Business Terms The dollar amount by which the equity exceeds the margin requirements in a… …   Financial and business terms

  • excess — ♦♦♦ excesses (The noun is pronounced [[t]ɪkse̱s[/t]]. The adjective is pronounced [[t]e̱kses[/t]].) 1) N VAR: with supp, usu a N of n An excess of something is a larger amount than is needed, allowed, or usual. An excess of houseplants in a small …   English dictionary


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