| GRO | a waterproofed piece of cloth spread on the ground (as under a tent) to protect from moisture |
|---|---|
| GRO | a communication system for sending continuous radio messages to an airplane pilot who is making a ground-controlled approach to landing |
| GRO | small plants other than saplings growing on a forest floor |
| GRO | low-growing plants planted in deep shade or on a steep slope where turf is difficult to grow |
| GRO | the crew of technicians and mechanics who service aircraft on the ground |
| GRO | apparent increase in aerodynamic lift experienced by an aircraft flying close to the ground |
| GRO | a variety of clubmoss |
| GRO | a forest fire that burns the humus |
| GRO | the floor of a building that is at or nearest to the level of the ground around the building |
| GRO | glass that diffuses light due to a rough surface produced by abrasion or etching |
| GRO | particulate glass made by grinding and used as an abrasive |
| GRO | trailing European aromatic plant of the mint family having rounded leaves and small purplish flowers often grown in hanging baskets |