| Term No. | Term Name | Term Description |
| 8098 | ACPI | Advanced Configuration and Power Interface, a power management specification developed by vendors like Intel, Microsoft, and Toshiba. ACPI, which will..... |
| 6745 | Acquired character | Variation in an organism that appears as a response to environmental influence...... |
| 567 | Acre feet | img:equations//566_595_e.jpg..... |
| 568 | Acre feet | img:equations//566_595_e.jpg..... |
| 566 | Acres | img:equations//566_595_e.jpg..... |
| 5209 | Across-the-slope drainage system, or Keythrope drainage system | A system of drain pipes or tiles running across rather than down the slope...... |
| 1872 | Actinomycetes | 1 - One-celled organisms, that are a higher form of plant life than bacteria and are threadlike in shape. 2 - See 7094...... |
| 7094 | Actinomycetes | 1 - Mould-like bacteria involved in the decomposition of organic matter. 2 - See 1872. ..... |
| 7150 | Activated carbon | A substance prepared by carbonizing (charring) organic material in the absence of oxygen at very high temperature and then activating by oxidation wit..... |
| 7151 | Activated charcoal | A highly absorbent form of carbon used to remove odours and toxic substances from gaseous emissions or to remove dissolved organic matter from wastewa..... |
| 7402 | Activated sludge secondary treatment | A biological wastewater reclamation process that involves appropriate microorganisms, agitation and aeration...... |
| 1940 | Active absorption | The inward passage, by osmosis, of inorganic salts in solution from soil water to the root hairs...... |
| 2628 | Active earth pressure | A pressure/force from the earth/soil) tending to overturn a free retaining wall. The soil mass mobilises its internal shearing resistance...... |
| 9263 | Active involvement | Any level of public participation above consultation. Active involvement implies that the interested parties participate actively in the planning proc..... |
| 2615 | Active state of plastic equilibrium | Plastic equilibrium obtained by an expansion of a mass...... |
| 2395 | Active storage | The volume of the reservoir that is available for use either for power generation, irrigation, flood control or other purposes. Active storage exclude..... |
| 4212 | Active zone of well | The portion of an aquifer from which the well is fed...... |
| 443 | Activity | img:equations//..... |
| 8604 | Activity | 1 - A change in entities or their attributes. Often used in LP. modeled. 2 - See 443...... |
| 1817 | Actual water deficiency | The depth of water required to bring the soil moisture content up to field capacity...... |
| 4883 | Actual water income | Water received from precipitation as well as that entering the area as underground flow available for evapotranspiration within the area...... |
| 6215 | Actuating unit | A component of the automatic farm water distribution system consisting of a group of valves operated sequentially; on the same distribution line...... |
| 7476 | Acute toxicity | Any poisonous effect produced by a single short‑term exposure that results in severe biological harm or death...... |
| 6744 | Adaptation | Any characteristic in a living organism that improves its chance of survival...... |
| 7837 | Adaptive Capacity | The ability of a system to adjust to climate change (including climate variability and extremes) to moderate potential damages, to take advantage of o..... |
