
1) Exocrine system 2) Period 3) Period of time 4) Time period
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https://www.crosswordclues.com/clue/lactation

• (n.) A giving suck; the secretion and yielding of milk by the mammary gland.
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http://thinkexist.com/dictionary/meaning/lactation/

(L. lactatio, from lactare to suckle) the period of the secretion of milk.
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http://users.ugent.be/~rvdstich/eugloss/DIC/dictio49.html

secretion and yielding of milk by females after giving birth. The milk is produced by the mammary glands, which are contained within the breasts. ... [5 related articles]
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http://www.britannica.com/eb/a-z/l/4

The period of calf nursing between birth and weaning
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http://www.cattlepages.com/dictionary/

<obstetrics> The period of the secretion of milk. ... Origin: L. Lactatio, from lactare = to suckle ... (18 Nov 1997) ...
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http://www.encyclo.co.uk/local/20973

(lak-ta´shәn) the secretion of milk by the breasts; it is thought to be brought about by action of progesterone and estrogen and specific pituitary hormones, such as lactogenic hormone (prolactin). It does not begin until at least 3 days after the birth of the baby; before that, and immediately after birth, ...
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http://www.encyclo.co.uk/local/21001

production of breast milk.
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http://www.encyclo.co.uk/local/22225
Lac·ta'tion noun A giving suck; the secretion and yielding of milk by the mammary gland.
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http://www.encyclo.co.uk/webster/L/4

Milk production
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http://www.gaitedhorses.net/Articles/HorseGlossary.html

(lak-ta;shun) The production and secretion of milk by the mammary glands.
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http://www.mhhe.com/biosci/abio/glossary.mhtml

Production of milk by the breasts.
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http://www.momswhothink.com/pregnancy/pregnancy-terms-glossary.html

The period of time in which ewe is producing milk.
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http://www.sheepusa.org/

It is the process by which milk secretion in the breasts is initiated and maintained and milk is delivered to the suckling infant.
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http://www.vidyagyaan.com/general-knowledge/science/list-of-glossary-of-zoo

The period after birth in which the mother produces milk for the offspring.
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https://www.encyclo.co.uk/local/20496

Secretion of milk in mammals, from the mammary glands. In late pregnancy, the cells lining the lobules inside the mammary glands begin extracting substances from the blood to produce milk. The supply of milk starts shortly after birth with the production of colostrum, a clear fluid consisting largely of water, protein, antibodies, and vitamins. The...
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https://www.encyclo.co.uk/local/21221

Secretion or formation of milk by the mammary glands.
Found on
https://www.encyclo.co.uk/local/21273

Latin lactans = suckling. Hence, the act of secreting milk.
Found on
https://www.encyclo.co.uk/local/21450

The period in which a doe produces milk; the secretion or formation of milk.
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https://www.encyclo.co.uk/local/22169

milk production
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https://www.encyclo.co.uk/local/22439

The period of milk secretion.
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https://www.encyclo.co.uk/local/22476

Milk production by the breasts
Found on
https://www.encyclo.co.uk/local/22787

Production of milk by female; duration of suckling.
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https://www.encyclo.co.uk/local/23466

Production of milk by the breasts.
Found on
https://www.parents.com/pregnancy/my-body/pregnancy-health/pregnancy-glossa

the production and secretion of milk by the mammary glands
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https://www.vocabulary.com/lists/310894
No exact match found.