凸缘

tū yuán

2-character word Traditional 凸緣

What 凸缘 means

flange

The characters in 凸缘

凸tūto stick out; protruding; convex; male (connector etc); Taiwan pr. tú
缘yuáncause; reason; karma

Looking a word up is not learning it. GraphChinese puts all of HSK 1–6 into one dependency graph, teaches each piece only once its prerequisites are solid, and schedules reviews to land just before you would forget.

Start learning — $49 lifetime