| Term No. | Term Name | Term Description |
| 1548 | Gabion | A crate or box made of wire mesh, filled with stone. Gabions may be laid in courses like large bricks to form bank revetment, groynes, aprons or prote..... |
| 1549 | Gabion groyne | Groyne composed of any type of gabions...... |
| 1550 | Gabionnade | An obstruction or protective work made of gabions...... |
| 6197 | Gain | The ratio of the output signal to the input signal of an automatic device, e.g. in proportional control, the proportionality factor between the move o..... |
| 2471 | Gallery | An opening or passage provided within the body of a structure that may run either transversely or longitudinally and may be either horizontal or on a ..... |
| 6968 | Game fish | A fish species caught for sport; e.g. trout, salmon, bass. Game fish typically show more sensitivity to environmental changes than rough fish...... |
| 8627 | Game theory | Stochastic theory of games played by two or more parties. The theory analyzes the probability of winning the game when certain decisions are adopted...... |
| 7233 | Gamma ray | The most penetrating waves of radiant nuclear energy. Can be stopped by dense materials, such as lead. ..... |
| 4196 | Gang of wells, or Battery of wells | A group of wells, connected by pipe manifold, from which water is drawn by a single pump or other water lifting devices...... |
| 8964 | Gantt chart | Bar chart that shows graphically the duration, including the start and end dates, of the project`s activities, as well as its milestones; can also sho..... |
| 5665 | Gap graded concrete | A concrete produced by omitting the intermediate sizes and deleting the extreme fines from the aggregate. This type of concrete gives greater compactn..... |
| 8164 | Garbage | Unwanted and meaningless information carried along in storage...... |
| 5650 | Gas concrete | A cellular concrete obtained by mixing finely divided aluminium powder in the cement. A chemical reaction takes place with hydroxide of calcium or alk..... |
| 5605 | Gas-forming agents | Admixtures, such as aluminium powder, used to improve the intimacy of contact of the paste with adjacent concrete or aggregate particles as well as em..... |
| 4264 | Gas-lift flowing well | A well in which the groundwater tapped is not under sufficient hydrostatic pressure to be lifted above the land surface without the introduction of ga..... |
| 8165 | Gate Array | A group of standard logic gates that can be interconnected into a complete circuit or system. Also called Logic Array...... |
| 3611 | Gate bay, Upper gate bay, Head bay, Lower gate bay, or Tail bay | The water space in the lock head. Depending on its position, it may be upper gate bay or lower gate bay...... |
| 3615 | Gate chamber | Portion of a lock in which the lock gates operate at the opening or closing of the lock (illustrated)...... |
| 3618 | Gate chamber floor | The portion of the bay floor, generally depressed in the gate chamber...... |
| 2526 | Gate chamber of sluice well | A structure located within the abutment main body of the dam or the dam embankment where the regulating gates or emergency gates are installed. The lo..... |
| 3617 | Gate chamber wall | The portion of the bay wall, usually recessed, required either for holding or for the movement of the gate or gates...... |
| 2474 | Gate gallery | Gallery provided in dams for access to and room for the mechanical equipment used for the operation of gates in outlet conduits, power penstocks, or s..... |
| 2947 | Gate hanger | A device to hold the gate open...... |
| 3616 | Gate recesses | The recesses in the side walls of the gate chamber where lock gates rest when in the open position (illustrated)...... |
| 2878 | Gate seal | Leakage preventing material or device provided at the sides and bottom of the gates, it can be at the top also when the gate is submerged under water...... |
