| 贵定 | Guì dìng | Guiding county in Qiannan Buyei and Miao autonomous prefecture 黔南州, Guizhou |
| 贵定县 | Guì dìng xiàn | Guiding county in Qiannan Buyei and Miao autonomous prefecture 黔南州, Guizhou |
| 费尔马大定理 | Fèi ěr mǎ dà dìng lǐ | Fermat's last theorem |
| 贸易协定 | mào yì xié dìng | trade agreement |
| 超文件传输协定 | chāo wén jiàn chuán shū xié dìng | hypertext transfer protocol; HTTP |
| 超文本传输协定 | chāo wén běn chuán shū xié dìng | hypertext transfer protocol; HTTP |
| 路由协定 | lù yóu xié dìng | routing protocol |
| 通信协定 | tōng xìn xié dìng | communications protocol |
| 通讯协定 | tōng xùn xié dìng | communications protocol |
| 运动定律 | yùn dòng dìng lǜ | laws of motion (mechanics) |
| 酌定 | zhuó dìng | to decide after intense deliberation |
| 重定向 | chóng dìng xiàng | to redirect |
| 野外定向 | yě wài dìng xiàng | orienteering |
| 量身定制 | liáng shēn dìng zhì | tailor-made |
| 锁定 | suǒ dìng | to lock (a door); to close with a latch; to lock into place; a lock; a latch; to lock a computer file (to prevent it being overwritten); to lock (denying access to a computer system or device or files, e.g. by password-protection); to focus attention on; to target |
| 镇定剂 | zhèn dìng jì | tranquilizer; depressant; sedative |
| 镇定药 | zhèn dìng yào | sedative drug |
| 鉴定委员会 | jiàn dìng wěi yuán huì | evaluation committee; review board |
| 长期稳定性 | cháng qī wěn dìng xìng | long term stability |
| 闭图象定理 | bì tú xiàng dìng lǐ | closed graph theorem (math) |
| 开普勒定律 | Kāi pǔ lè dìng lǜ | Kepler's laws of planetary motion (1609, 1618) |
| 关税与贸易总协定 | guān shuì yǔ mào yì zǒng xié dìng | GATT, the 1995 General Agreement on Tariffs and Trade |
| 关贸总协定 | guān mào zǒng xié dìng | GATT, the 1995 General Agreement on Tariffs and Trade |
| 阿伏伽德罗定律 | Ā fú jiā dé luó dìng lǜ | Avogadro's law, a gas law named after Amedeo Avogadro |
| 限定词 | xiàn dìng cí | determiner (in grammar, i.e. article, demonstrative, possessive pronoun, noun genitive etc) |
| 除另有约定 | chú lìng yǒu yuē dìng | unless otherwise agreed |
| 零点定理 | líng diǎn dìng lǐ | Hilbert's zeros theorem (math.); Nullstellensatz |
| 非法定 | fēi fǎ dìng | non-statutory; non-governmental |
| 头孢拉定 | tóu bāo lā dìng | cefradine, cephradine (pharm.) |
| 余数定理 | yú shù dìng lǐ | the Remainder Theorem |
| 验定 | yàn dìng | to test and determine; to examine; to assay |
| 黎曼罗赫定理 | Lí màn luó hè dìng lǐ | (math.) the Riemann-Roch theorem |
| ＤＮＡ亲子鉴定 | D N A qīn zǐ jiàn dìng | DNA paternity test |
| ＤＮＡ鉴定 | D N A jiàn dìng | DNA test; DNA testing |
