si6 san4 ging1 pun4视神经盘
Jyutpingsi6 san4 ging1 pun4
Yalesih sành gīng pùnh

Definition

optic disk (terminal of the optic nerve on the retina)

Tone guide

T1High level
T2High rising
T3Mid level
T4Low falling
T5Low rising
T6Low level

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Dictionary data from CC-Canto and CC-CEDICT, licensed under CC BY-SA 3.0.