Pronunciation:[yǎn]

Diffract is an acrostic character. It is wrapped in line from 氵, which means water flowing in the river. The sound yǎn is the same as 演. The original meaning is water flowing into the sea, which is derived as richness. It is also derived from stroll as flat; from diffuse as redundant.

Detailed explanation ：

延长，开展：～绎。 ~ raw. Push ~. Shik～. ~ bio.

Extra (referring to words): ~ text (extra words in a book due to copying, engraving, or typographical errors).

Low and flat land: ~ wo (The land is flat and fertile.). Also known as "Woyan").