CEA DEFINITIONS AND BIOLOGY

Understanding the Language of CEA

Glossary for CEA Terms

Explore Greenhub’s cross-disciplinary glossary of Controlled Environment Agriculture (CEA) — a growing knowledge base for greenhouse growers, indoor farm managers, researchers, breeders, and agtech innovators. Here you’ll find concise definitions of key vertical farming and plant science terms that help create a shared language across the CEA industry.

A

Abiotic Stress

Stress from non-living factors (heat, salinity, drought). 

Actuator Duty Cycle

% of time an actuator is active. (Digital Control &Software Metric)

Aeroponic Tower

Vertical system where roots are suspended in air and misted with nutrients.

Aeroponics

Roots suspended in air, misted with nutrient solution.

AI & Machine Learning

Predictive models for yield and stress. 

Air Distribution Systems

Polyethylene tubes or ducts distributing conditioned air uniformly through the crop canopy. 

Air Handling Unit (AHU)

Centralized unit for controlling temperature, humidity, and CO₂ of incoming air. 

Air Temperature

Climate variable, measured at canopy and reference levels. 

Air Temperature Setpoint

Target air temperature value. 

Alarm / Event Logs

Records of deviations, failures, or warnings. (Digital Control & Software Metric)

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