乙 ⇒
乙 yǐ/zhé, second of the ten Heavenly Stems 十天干[shí tiān gān]/second in order/letter "B" or...
乙醇 yǐchún, ethanol CHOH/same as alcohol 酒精
乙烯 yǐxī, ethylene/vinyl
聚乙烯 jùyǐxī, polythene/polyethylene
乙醚 yǐmí, ether/diethyl ether CHÓCH
乙酸 yǐsuān, acetic acid (CHCOOH)/ethanoic acid
乙炔 yǐquē, acetylene/ethyne CH
聚氯乙烯 jùlǜyǐxī, polyvinyl chloride (PVC)
乙肝 yǐgān, hepatitis B
乙巳 yǐsì, forty-second year B6 of the 60 year cycle, e.g. 1965 or 2025
聚苯乙烯 jùběnyǐxī, polystyrene
乙状结肠 yǐzhuàngjiécháng, [乙狀結腸], sigmoid colon (anatomy)/bent colon, linking the descending colon to the rectum
苯乙烯 běnyǐxī, Styrene
乙级 乙方 yǐfāng, second party (law)/see also 甲方[jiǎ fāng]
乙羽 乙未 yǐwèi, thirty-second year B8 of the 60 year cycle, e.g. 1955 or 2015
乙吉 乙荃 甲乙 jiǎyǐ, first two of the ten Heavenly Stems 十天干[shí tiān gān]
炔 ⇒
乙炔 yǐquē, acetylene/ethyne CH
炔 Guì/quē, surname Gui, alkyne/also pr. [jué]