释义 |
naph·tha·lene·acetic acid \| ̷ ̷ ̷ ̷ˌ ̷ ̷+...-\ noun Etymology: naphthalene + acetic : either of two crystalline naphthyl derivatives C10H7CH2COOH of acetic acid; especially : the alpha or 1-compound used as a growth regulator for plants (as for preventing drop of apples before normal harvest time) |