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Consult Chambers 21st Century Dictionary, The Chambers Thesaurus (1996) or Chambers Biographical Dictionary (1997 edition with amendments). Enter your search and choose your title from the drop-down menu.
melatonin noun, physiol in vertebrates: a hormone secreted by the pineal gland that is involved in the control of certain daily and seasonal changes, and changes in pigmentation.
ETYMOLOGY: 1950s: modelled on serotonin, from Greek melas black.
melatonin noun, physiol in vertebrates: a hormone secreted by the pineal gland that is involved in the control of certain daily and seasonal changes, and changes in pigmentation.
ETYMOLOGY: 1950s: modelled on serotonin, from Greek melas black.
melatonin noun, physiol in vertebrates: a hormone secreted by the pineal gland that is involved in the control of certain daily and seasonal changes, and changes in pigmentation.
ETYMOLOGY: 1950s: modelled on serotonin, from Greek melas black.
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The Chambers Thesaurus
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Chambers Biographical Dictionary
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Consult Chambers 21st Century Dictionary, The Chambers Thesaurus (1996) or Chambers Biographical Dictionary (1997 edition with amendments). Enter your search and choose your title from the drop-down menu.
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