動(dòng)詞 denature:

1. add nonfissionable material to (fissionable material) so as to make unsuitable for use in an atomic bomb
2. modify (as a native protein) especially by heat, acid, alkali, or ultraviolet radiation so that all of the original properties are removed or diminished
3. make (alcohol) unfit for drinking without impairing usefulness for other purposes

de.na.ture

v.tr.（及物動(dòng)詞）
de.na.tured,de.na.tur.ing,de.na.tures
To change the nature or natural qualities of.
使性質(zhì)改變：改變…的性質(zhì)或自然屬性
To render unfit to eat or drink without destroying usefulness in other applications, especially to add methanol to (ethyl alcohol).
使變性：使食物和飲料變質(zhì)而不破壞這些物質(zhì)用于其它目的的用途，尤指（在乙醇中）加甲烷
Biochemistry To alter the structure of (a protein), as with heat, alkali, or acid, so that some of its original properties, especially its biological activity, are diminished or eliminated.
【生物化學(xué)】 使變質(zhì)：改變（蛋白質(zhì)的）結(jié)構(gòu)，例如通過加熱、加堿、加酸等等，以減少或消除（蛋白質(zhì)）原有的某些特性，尤指其生物特性
Physics To add nonfissionable matter to (fissionable material) so as to prevent use in an atomic weapon.
【物理學(xué)】 使（核材料）中毒：（向可裂變材料中）加入不可裂變物質(zhì)以防止（這種可裂變物質(zhì)）用于原子核武器

【引伸】
dena.turant
n.（名詞）
dena.tura.tion
n.（名詞）