| progress | 1. A moving or going forward; a proceeding onward; an advance; specifically: In actual space, as the progress of a ship, carriage, etc. In the growth of an animal or plant; increase. In business of any kind; as, the progress of a negotiation; the progress of art. In knowledge; in proficiency; as, the progress of a child at school. Toward ideal completeness or perfection in respect of quality or condition; applied to individuals, communities, or the race; as, social, moral, religious, or political progress. 2. A journey of state; a circuit; especially, one made by a sovereign through parts of his own dominions. "The king being returned from his progresse." (Evelyn) Origin: L. Progressus, from progredi, p. P. Progressus, to go forth or forward; pro forward + gradi to step, go: cf. F. Progres. See Grade. Source: Websters Dictionary (01 Mar 1998) |
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| progress curve | A graphical representation of a chemical or enzyme-catalyzed reaction in which the product concentration or the substrate concentration or the ES binary complex are plotted against time. (05 Mar 2000) |
| progress zone | An undifferentiated population of mesenchyme cells beneath the apical ectodermal ridge of the chick limb bud from which the sucessive parts of the limb are laid down in a proximo distal sequence. (18 Nov 1997) |
| renewable energy resource | <ecology> An energy resource replenished continuously or that is replaced after use through natural means. Sustainable energy. Renewable energy resources include bioenergy, solar energy, wind energy, geothermal power, and hydropower. (25 Jun 1999) |
| resource | <chemistry> Total amount of a substance which exists in the earth and could conceivably be extracted someday at some price with some technology. Typically much larger than reserves. (10 Mar 1998) |
| resource conservation and recovery act | (RCRA) A federal law regulating solid and hazardous waste. RCRA governs the generation, storage, treatment, transport, and disposal of hazardous waste. (05 Dec 1998) |
| resource values | A resource, natural or social, that is found in an area. Resource values may have varying levels of significance. (05 Dec 1998) |
| integrated resource planning | See Least cost planning. (05 Dec 1998) |
| thermal resource | A facility that produces electricity by using a heat engine to power an electric generator. The heat may be supplied by the combustion of coal, oil, natural gas, biomass, or other fuels, including nuclear fission, solar, or geothermal resources. (05 Dec 1998) |
| refractory period of electronic pacemaker | The time required to restore full sensitivity after detecting cardiac activity or delivering a pacing impulse. (05 Mar 2000) |
| Mueller electronic tonometer | A Schiotz type tonometer that electronically indicates the extent of corneal indentation; may also have an attached recorder for continuous pressure readings (tonography). (05 Mar 2000) |
| electronic | 1. Pertaining to electrons. 2. Denoting devices or systems utilizing the flow of electrons in a vacuum, gas, or saemiconductor. (05 Mar 2000) |
| electronic cell counter | <apparatus, haematology> An automatic blood cell counter in which cells passing through an aperture alter resistance and are counted as voltage pulses, or in which cells passing through a flow cell deflect light. Some types of counter are capable of multiple simultaneous measurements on each blood sample; e.g., leukocyte count, red cell count, haemoglobin, haematocrit, and red cell indices. (21 Jun 2000) |
| electronic number | <chemistry> The number of electrons in the outermost orbit (valence shell) of an element. (05 Mar 2000) |
| electronic pacemaker | An electric device that can substitute for the normal cardiac pacemaker, controlling the heart's rhythm by artificial electric discharges. Synonym: electronic pacemaker. (05 Mar 2000) |