Medical Root
lact/o
milk
From Latin lac (stem lact-), milk
Meaning
What does lact/o mean?
lact/o is a root meaning milk. It comes from Latin lac (stem lact-), milk.
Inside words it is spelled lact.
The same Latin root gives lactation, making milk, and lactose, the sugar in milk.
In real words
Medical words with lact/o
stimulating the production of milk, as lactogenic hormones do
relating to or obtained from milk, as in lactic acid
lactogenesis
the onset and process of milk secretion by the mammary glands
Sources
Checked against
Written for biofideX in plain words, after checking these references:
- 8.2 Word Components Related to Obstetrics – Medical Terminology 2e
- Appendix A: Word Parts and What They Mean
- Word Parts and Obstetric & Neonatology Terms – Medical Terminology: An Interactive Approach
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Practice it
Male reproduction and birth
lact/o is one of 8 parts in this lesson. Learn them together, then take real words apart.
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