| Subject | English | Japanese |
| tech. | amplification factor | 倍率 (bairitsu) |
| vac.tub. | amplification factor | 増幅率 (zōfukuritsu) |
| phys. | amplification factor | 増幅定数 (zōfuku-teisū) |
| tech. | amplification factor | 增幅係数 (ぞうふくけいすう) |
| nucl.phys. | amplification factor of the plasma | Q因子 |
| phys. | current amplification factor | 電流増幅率 (でんりゅう・ぞうふくりつ) |
| tech. | dynamic amplification factor | 動的増幅率 (どうてきぞうふくりつ) |
| phys. | gas amplification factor | ガス増幅率 (gasu-zōfukuritsu) |