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English Thesaurus

1. hormone produced by the thyroid glands to regulate metabolism by controlling the rate of oxidation in cells (noun.body)

hypernym	:	thyroid hormone, thyroid hormone,
definition	:	any of several closely related compounds that are produced by the thyroid gland and are active metabolically (noun.body)

2. the 20th letter of the Roman alphabet (noun.communication)

hypernym	:	alphabetic character, letter, letter of the alphabet,
definition	:	the conventional characters of the alphabet used to represent speech (noun.communication)

member meronym	:	latin alphabet, roman alphabet,
definition	:	the alphabet evolved by the ancient Romans which serves for writing most of the languages of western Europe (noun.communication)

3. a unit of weight equivalent to 1000 kilograms (noun.quantity)

hypernym	:	metric weight unit, weight unit,
definition	:	a decimal unit of weight based on the gram (noun.quantity)

part holonym	:	quintal,
definition	:	a unit of weight equal to 100 kilograms (noun.quantity)

4. one of the four nucleotides used in building DNA; all four nucleotides have a common phosphate group and a sugar (ribose) (noun.substance)

hypernym	:	base, nucleotide,
definition	:	a phosphoric ester of a nucleoside; the basic structural unit of nucleic acids (DNA or RNA) (noun.substance)

5. a base found in DNA (but not in RNA) and derived from pyrimidine; pairs with adenine (noun.substance)

hypernym	:	pyrimidine,
definition	:	any of several basic compounds derived from pyrimidine (noun.substance)

substance meronym	:	deoxyribonucleic acid, desoxyribonucleic acid, dna,
definition	:	(biochemistry) a long linear polymer found in the nucleus of a cell and formed from nucleotides and shaped like a double helix; associated with the transmission of genetic information (noun.substance)