residue
B1CEFR level
30/100Rarity: fairly common
TechnicalRegister
Material remaining in the oral cavity or pharynx after the swallow is completed.
Pharyngeal residue in the valleculae was cleared only after a second, dry swallow.
Rarity runs from 0 (a word everyone knows) to 100 (almost never seen outside specialist or literary writing). Level is the word's real difficulty on the CEFR scale, from A1 to C2.
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