Adulterant

(noun.) any substance that lessens the purity or effectiveness of a substance; 'it is necessary to remove the adulterants before use'.

科妮莉亚手打

• As Manila fiber is at times adulterated with Sisal, so has the latter its adulterant in a plant called Istle, which grows in Mexico and has hitherto been chiefly used in brush making. 佚名. 神奇的知识之书.
• The thermometer can also be used in detecting adulterants. 伯莎M.克拉克. 科学通论.
• Most of the vanilla extracts sold for flavoring purposes are adulterated with Tonka beans and other adulterants, some containing not a particle of vanilla. 威廉K.戴维. 智者、化学家和伟大医生的秘密.

整理:威尔伯