Learner's definition of DNA
[noncount]
: a substance that carries genetic information in the cells of plants and animals脱氧核糖核酸(动植物细胞中携带基因信息的物质) —
often used before another noun常用于另一名词前 ◊ DNA is an abbreviation of “deoxyribonucleic acid.”*DNA是deoxyribonucleic acid的缩略词。
— compare nucleic acid, rna