13.-0040. Aerotolerant.

13.- WASH Glossary.
13.-0039. Aeroponic.
13.-0038. Aerobic.
13.-0037. Aerobic wastewater treatment.
13.-0036. Aerobic process.
13.-0035. Aerobic pond.
13.-0034. Aerobic digestion.
13.-0033. Aerated pond.
13.-0032. Advocacy.
13.-0031. Advection fog.
13.-0030. Advanced wastewater treatments.
13.-0029. Advanced oxidation process.
13.-0028. Advanced integrated wastewater pond.
13.-0027. Advanced facultative pond.
13.-0026. Adult learning.
13.-0025. Adsorption.
13.-0024. Adsorbent.
13.-0023. Adhesion.
13.-0022. Additive.
13.-0021. Activated sludge.
13.-0020. Activated carbon.
13.-0019. Acre foot ( acre-ft ).
13.-0018. Acidity.
13.-0017. Acidic.
13.-0016. Acid.
13.-0015. Acetogenesis.
13.-0014. Acequia.
13.-0013. Accumulation system.
13.-0012. Accumulation rate.
13.-0011. Access / Inspection chambers.