gross observation
gross photosynthesis
gross primary production
gross rates
gross receipts
gross total resection
ground
ground acceleration
ground area

ground beef
ground beetles
ground chicken breast meat
ground conditions
ground contact
ground cover
ground floor
ground investigations
ground layer
ground level

ground measurements
ground meat
ground motions
ground observations
ground pattern
ground penetrating radar
ground plan
ground plane
ground pork
ground reaction forces

ground samples
ground sections
ground squirrels
ground state
ground state energy
ground state transition
ground states
ground substance
ground surface
ground survey

ground temperatures
ground truth
ground truth data
ground vegetation