1660s, "process of suckling an infant," from French lactation, from Late Latin lactationem (nominative lactatio) "a suckling," noun of action from past participle stem of lactare "suckle," from lac (genitive lactis) "milk," from PIE root *glakt- (cognates: Greek gala, genitive galaktos, "milk"), which, along with *melg- (see milk (n.)), accounts for words for "milk" in most Indo-European languages (the absence of a common word for it is considered a mystery). Meaning "process of secreting milk from the breasts" first recorded 1857. Middle Irish lacht, Welsh llaeth "milk" are loan words from Latin.
实用例句
1. Amazingly little is known about human lactation, or nursing.
对人类哺育婴儿或哺乳所知甚少.来自辞典例句
2. Lactation is the final phase of the reproductive cycle of mammals.
泌乳是哺乳动物繁殖周期的最后阶段.来自辞典例句
3. Breast infections occur during lactation.
**感染发生于授乳期.来自辞典例句
4. Lactation is suppressed by administration of androgens.
用雄激素制止泌乳.来自辞典例句
5. Cancers arising during lactation are treated in a conventional manner after suppression of lactation.
