. . "A quality inhering in a substance by virtue of the amount of the bearer's there is mixed with another substance."^^ . "concentration"^^ . . "concentration of" . "quality"^^ . . "PATO:0000033"^^ . "concentration of"^^ . "concentration of" . . . "A quality inhering in a substance by virtue of the amount of the bearer's there is mixed with another substance." . . .