sordes
口垢
sor·des /ˈsɔr(ˌ)dɪz/ 名詞
塵,垢,口垢
Sor·des n. Foul matter; excretion; dregs; filthy, useless, or rejected matter of any kind; specifically Med., the foul matter that collects on the teeth and tongue in low fevers and other conditions attended with great vital depression.
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