| PHOTOTAXES | • phototaxes n. Plural of phototaxis. • PHOTOTAXIS n. growth or movement determined by light.
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| HEPATOTOXIC | • hepatotoxic adj. Toxic to the liver; causing hepatotoxicity. • HEPATOTOXIC adj. relating to or causing injury to the liver.
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| PHOTOTAXIES | • PHOTOTAXY n. the movement of an entire organism in response to light. | 
| TROPHOTAXES | • TROPHOTAXIS n. chemotaxis and chemotropism where the stimulating substance is food. | 
| XANTHOPTERIN | • xanthopterin n. A yellow crystalline solid that occurs mainly in the wings of butterflies and in the urine of mammals… • XANTHOPTERIN n. a yellow pigment obtainable from the wings of yellow butterflies and the urine of mammals, also XANTHOPTERINE.
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| XANTHOPTERINE | • xanthopterine n. Alternative form of xanthopterin. • XANTHOPTERINE n. a yellow pigment obtainable from the wings of yellow butterflies and the urine of mammals, also XANTHOPTERIN.
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| XANTHOPTERINS | • xanthopterins n. Plural of xanthopterin. • XANTHOPTERIN n. a yellow pigment obtainable from the wings of yellow butterflies and the urine of mammals, also XANTHOPTERINE.
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| HEPATOTOXICITY | • hepatotoxicity n. Toxicity that damages the liver. • HEPATOTOXICITY n. a state of toxic damage to the liver.
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| HYDROXYAPATITE | • hydroxyapatite n. A basic calcium phosphate mineral that is the principal inorganic constituent of bone and teeth. • HYDROXYAPATITE n. a complex phosphate of calcium that occurs as a mineral and is the chief structural element of vertebrate bone.
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| PHOTOOXIDATIVE | • photooxidative adj. That causes, or undergoes photooxidation. • PHOTOOXIDATIVE adj. relating to photooxidation.
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| XANTHOPTERINES | • XANTHOPTERINE n. a yellow pigment obtainable from the wings of yellow butterflies and the urine of mammals, also XANTHOPTERIN. | 
| HYDROXYAPATITES | • hydroxyapatites n. Plural of hydroxyapatite. • HYDROXYAPATITE n. a complex phosphate of calcium that occurs as a mineral and is the chief structural element of vertebrate bone.
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| HYDROXYLAPATITE | • hydroxylapatite n. Alternative spelling of hydroxyapatite. • HYDROXYLAPATITE n. a mineral of the apatite group that is rare in the ground but is the principal inorganic constituent of tooth enamel and bone.
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| PHOTOEXCITATION | • photoexcitation n. (Chemistry) The formation of an excited state by the absorption of a photon. • PHOTOEXCITATION n. the process of exciting the atoms or molecules of a substance by the absorption of radiant energy.
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