鸟粪嘌呤 niǎofènpiàolìng guanine Definitions Defs Origin Strokes Stroke Words Sentences Sents 鸟粪 鳥糞 niǎofèn bird droppings bird excrement or droppings; guano, especially when accumulated by sea birds and used as fertilizer嘌呤 piàolìng purine (loanword) purine; a heterocyclic organic compound that forms colorless crystals and is a key component of nucleic acids
