dentifricen.
英 'dentɪfrɪs | 美 'dɛntə,frɪs
中文n. 牙膏；牙粉
词根词源
dentifrice (n.)early 15c., from Middle French dentifrice (15c.), from Latin dentifricium "powder for rubbing the teeth," from dens (genitive dentis) "tooth" (see tooth) + fricare "to rub" (see friction).
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