| Subject | English | Japanese |
| comp. | n bidirectional communication | 双方向通信 |
| semicond. | bidirectional diode thyristor | 双方向２端子サイリスタ |
| semicond. | bidirectional diode thyristor | ダイアック |
| phys. | bidirectional microphone | 両指向性マイクロホン (ryōshikōsei-maikurohon) |
| comp., MS | bidirectional prediction | 双方向予測 (A compression technique in which some images are predicted from the picture immediately preceding and following the image) |
| comp., MS | bidirectional predictive frame | 双方向予測フレーム (In MPEG and WMV encoding, a frame that contains only the differences from the frame preceding it and the frame following it) |
| comp. | n bidirectional printing | 両方向印刷 |
| comp. | n bidirectional printing | 双方向印刷 |
| semicond. | bidirectional transistor | 双方向トランジスタ |
| phys. | bidirectional transistor | 双方向性トランジスタ (sōhōkōsei-toranjisuta) |
| semicond. | bidirectional triode thyristor | 双方向３端子サイリスタ |
| semicond. | bidirectional triode thyristor | トライアック |