Agrology means: A subdiscipline of agronomy (the science of utilizing animals, plants, and soils) and of soil science which addresses the influence of edaphic (soil-related) conditions on crop production for. There is no real cause for parental concern; it is descriptive vocabulary rather than risky behaviour. If your teen uses it, context will usually make the intent clear. A short, curious question about where they heard it is usually all that is needed to know whether to follow up.