| testosterone |
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noun
- (steroid hormone) steroid, Steroid hormone produced primarily in the testes of the male; it is responsible for the development of secondary sex characteristics in the male.
- (figuratively) Manly behavior, often of an aggressive or foolishly reckless nature.
- Mother encouraged James to rely more on intelligence and less on to deal with the neighbor's son.
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| thiamine |
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noun
- (vitamin) One of the constituents of vitamin B complex, found in meat, yeast and bran, that is necessary for the metabolism of carbohydrates.
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| threonine |
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noun
- (amino acid) An essential amino acid C4H19NO3 found in most animal proteins.
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| thrombin |
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noun
- (enzyme) An enzyme in blood that facilitates blood clotting by converting fibrogen to fibrin (by means of ionized calcium).
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| thymine |
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noun
- (context, biochemistry, genetics) A base, C5H6N2O2, obtained by applying sulphuric acid to thymic acid; it pairs with adenine in DNA.
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| thymosin |
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noun
- A polypeptide hormone, secreted by the thymus, that stimulates the development of T cells as part of the immune system
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| thyroxine |
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noun
- (hormone) A hormone (an iodine derivative of tyrosine), produced by the thyroid gland, that regulates cell metabolism and growth.
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| tocopherol |
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noun
- Any of several isomers of the principal component of vitamin E, each containing a chromanol ring and an isoprene side-chain.
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| transcriptase |
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noun
- A polymerase that catalyzes the transcription of DNA to RNA.
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| transferrin |
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noun - (biochemistry) a glycoprotein, a beta globulin, in blood serum that combines with, and transports iron
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| transmitter |
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noun
- something that transmits something (in all senses)
- an electronic device that generates and amplifies a carrier wave, modulates it with a meaningful signal derived from speech, music, TV or other sources, and broadcasts the resulting signal from an antenna
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| trypsin |
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noun
- A digestive enzyme that cleaves peptide bonds (a serine protease).
category:Enzymes
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| tryptophan |
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noun
- (amino acid) An essential amino acid having an indole side chain; it is present in many foods, especially chocolate, oats, bananas and milk; it is essential for normal growth and development and is the precursor of serotonin and niacin.
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| tyramine |
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noun - (chemistry) a phenolic amine, 4-hydroxy-phenethylamine, derived from the amino acid tyrosine, found in various foodstuffs and used as a sympathomimetic agent
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| tyrosinase |
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noun
- An enzyme, similar to catechol oxidase, that catalyzes the production of phenolic pigments such as melanin.
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| tyrosine |
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noun
- (amino acid) A nonessential amino acid C9H11NO3 found in most animal proteins, especially casein.
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