To increase in power or amplitude. To increase the strength of an electrical signal by means of an amplifier.
Amplitude
Maximum value of an alternating current (AC).
Anaerobic
Able to live and grow without air or free oxygen, such as bacteria, some types of which break down the waste in a septic tank.
Anaerobic bacteria
Microorganisms that live in oxygen deprived environments.
Anaerobic digester
A device for optimizing the anaerobic digestion of biomass and/or animal manure, and possibly to recover biogas for energy production. Digester types include batch, complete mix, continuous flow (horizontal or plug-flow, multiple-tank, and vertical tank), and covered lagoon.
Anaerobic digestion
The complex process by which organic matter is decomposed by anaerobic bacteria. The decomposition process produces a gaseous byproduct often called "biogas" primarily composed of methane, carbon dioxide, and hydrogen sulfide.
Anaerobic lagoon
A holding pond for livestock manure that is designed to anaerobically stabilize manure, and may be designed to capture biogas, with the use of an impermeable, floating cover.
Analog multitester
A multitester is a device for measuring the electrical values of components, equipment or devices that require ac or dc power. Analog multitesters indicate an electrical value using a needle that sweeps across the face of a multiple numeric scale.
Analysis
Examination of parts to investigate the nature of something. Analyses can be made by chemical and mathematical means as well as in other ways.
Anchor
Any device that holds something secure. A sturdy attachment point.
