单词 | lactescence |
释义 | lactescence|lækˈtɛsəns| [f. lactescent: see -ence.] 1. A milky appearance; milkiness.
1684–5Boyle Hist. Min. Waters 57 We perceiv'd a light lactescence to be produc'd, and a whitish Precipitate very slowly to subside. 1756C. Lucas Ess. Waters I. 139 The solution of soap mixes smoothly and causes a slight lactescence. In mod. Dicts. 2. Bot. An abundant flow of sap from certain plants when wounded, commonly white, but sometimes red.
1760Lee Introd. Bot. iii. xx. (1765) 216 Lactescence, Milkiness, is when a copious Juice flows out on any injury done to the Plant. In mod. Dicts. |

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