| 乙 | yǐ | second of the ten Heavenly Stems 十天干[shi2 tian1 gan1] / second in order / letter "B" or Roman "II" in list "A, B, C", or "I, II, III" etc / second party (in legal contract, usually 乙方[yi3 fang1], as opposed to 甲方[jia3 fang1]) / ethyl / bent / winding / radical in Chinese characters (Kangxi radical 5) / ancient Chinese compass point: 105° |
| 甲 | jiǎ | first of the ten Heavenly Stems 十天干[shi2 tian1 gan1] / (used for an unspecified person or thing) / first (in a list, as a party to a contract etc) / letter "A" or roman "I" in list "A, B, C", or "I, II, III" etc / armor plating / shell or carapace / (of the fingers or toes) nail / bladed leather or metal armor (old) / ranking system used in the Imperial examinations (old) / civil administration unit in the baojia 保甲[bao3 jia3] system (old) / ancient Chinese compass point: 75° |
| 丙 | bǐng | third of the ten Heavenly Stems 十天干[shi2 tian1 gan1] / third in order / letter "C" or Roman "III" in list "A, B, C", or "I, II, III" etc / ancient Chinese compass point: 165° / propyl |
| B超 | B chāo | B-mode ultrasonography / prenatal ultrasound scan / abbr. for B型超聲|B型超声[B xing2 chao1 sheng1] |
| B | bī | euphemistic variant of 屄[bi1] |
| 己 | jǐ | self / oneself / sixth of the ten Heavenly Stems 十天干[shi2 tian1 gan1] / sixth in order / letter "F" or Roman "VI" in list "A, B, C", or "I, II, III" etc / hexa |
| 乙方 | yǐ fāng | party B (in a contract) (cf. 甲方[jia3fang1], party A) |
| 壬 | rén | ninth of the ten Heavenly Stems 十天干[shi2 tian1 gan1] / ninth in order / letter "I" or Roman "IX" in list "A, B, C", or "I, II, III" etc / ancient Chinese compass point: 345° / nona |
| 戊 | wù | fifth of the ten Heavenly Stems 十天干[shi2 tian1 gan1] / fifth in order / letter "E" or Roman "V" in list "A, B, C", or "I, II, III" etc / penta |
| 庚 | gēng | age / seventh of the ten Heavenly Stems 十天干[shi2 tian1 gan1] / seventh in order / letter "G" or Roman "VII" in list "A, B, C", or "I, II, III" etc / ancient Chinese compass point: 255° / hepta |
| 二级 | èr jí | grade 2 / second class / category B |
| 乙肝 | yǐ gān | hepatitis B |
| 胆碱 | dǎn jiǎn | choline (amine related to vitamin B complex) |
| 辛 | xīn | (of taste) hot or pungent / hard / laborious / suffering / eighth in order / eighth of the ten Heavenly Stems 十天干[shi2 tian1 gan1] / letter "H" or Roman "VIII" in list "A, B, C", or "I, II, III" etc / ancient Chinese compass point: 285° / octa |
| 甲方 | jiǎ fāng | party A (in a contract) (cf. 乙方[yi3fang1], party B) |
| 乙型 | yǐ xíng | type B / type II / beta- |
| 送气 | sòng qì | aspiration (phonetics, explosion of breath on consonants distinguishing Chinese p, t from b, d) |
| 拉米夫定 | Lā mǐ fū dìng | Lamivudine, reverse transcriptase inhibitor marketed by GlaxoSmithKline and widely used in the treatment of hepatitis B and AIDS / brand names include Zeffix, Heptovir, Epivir and Epivir-HBV |
| 切尼 | Qiē ní | Cheney (name) / Richard B. "Dick" Cheney (1941-), US Republican politician, vice-president 2001-2008 |
| 双唇音 | shuāng chún yīn | bilabial consonant (b, p, or m) |
| 贝加莱 | Bèi jiā lái | B&R Industrial Automation International Trade (Shanghai) Co., Ltd. |
| 黎曼 | Lí màn | G.F.B. Riemann (1826-1866), German geometer |
| 乙型肝炎 | yǐ xíng gān yán | hepatitis B |
| 乙型脑炎 | yǐ xíng nǎo yán | epidemic encephalitis B, aka Japanese encephalitis |
| 判别式 | pàn bié shì | (math.) discriminant (e.g. b²-4ac in the formula for the roots of a quadratic equation) |