衍 jin⁵ {yǎn}

1. to spread out
2. to develop
3. to overflow
4. to amplify
5. superfluous

衍生 hin² sang¹ {yǎn shēng}

1. to give rise to
2. to derive
3. derivative
4. derivation

衍變〔-变〕 jin⁵ bin³ {yǎn biàn}

1. to develop
2. to evolve

衍化 jin⁵ faa³ {yǎn huà}

1. to evolve (of ideas, designs, constructions etc)
2. to develop and change

衍伸 jin⁵ san¹ {yǎn shēn}

1. to give rise (to)
2. to spawn
3. to spread (to)

衍射 jin⁵ se⁶ {yǎn shè}

diffraction

衍生物 jin⁵ sang¹ mat⁶ {yǎn shēng wù}

a derivative (complex product derived from simpler source material)

衍射角 jin⁵ se⁶ gok³ {yǎn shè jiǎo}

angle of diffraction (physics)

衍聖公〔-圣-〕 jin⁵ sing³ gung¹ {Yǎn shèng gōng}

hereditary title bestowed on Confucius' descendants

衍生產品〔--产-〕 jin⁵ sang¹ caan² ban² {yǎn shēng chǎn pǐn}

1. derivative product
2. derivative (in finance)

衍射格子 jin⁵ se⁶ gaak³ zi² {yǎn shè gé zi}

diffraction grating (physics)

衍聲複詞〔-声复词〕 jin⁵ sing¹ fuk¹ ci⁴ {yǎn shēng fù cí}

compound word such as 玫瑰, 咖啡, whose meaning is unrelated to the component hanzi, which often cannot be used singly

衍聖公府〔-圣--〕 jin⁵ sing³ gung¹ fu² {Yǎn shèng gōng fǔ}

the official residence of Confucius' descendants at Qufu 曲阜, Shandong