| HYDROXIDE | • hydroxide n. (Chemistry) An univalent anion (OH-) based on the hydroxyl functional group. • hydroxide n. Any substance containing such an anion. • HYDROXIDE n. any compound containing an -OH group. |
| HYDROXIDES | • hydroxides n. Plural of hydroxide. • HYDROXIDE n. any compound containing an -OH group. |
| HYPEROXIDE | • hyperoxide n. (Inorganic chemistry) Any oxide that has a higher than normal ratio of oxygen to metal. • HYPEROXIDE adj. a compound containing a relatively large proportion of oxygen. |
| HYDROXYZINE | • hydroxyzine n. (Pharmacology) A first-generation antihistamine of the piperazine class, used as an antihistamine, antiemetic… • HYDROXYZINE n. a compound used as an antihistamine and tranquilizer. |
| HYPEROXIDES | • hyperoxides n. Plural of hyperoxide. • HYPEROXIDES n. HYPEROXIDE. |
| HYDROXYZINES | • hydroxyzines n. Plural of hydroxyzine. • HYDROXYZINE n. a compound used as an antihistamine and tranquilizer. |
| HYPEREXCITED | • hyperexcited adj. Very highly excited. • HYPEREXCITED adj. excessively excited. |
| HYDROPEROXIDE | • hydroperoxide n. (Organic chemistry) any mono-substituted derivative of hydrogen peroxide - ROOH. • HYDROPEROXIDE n. a compound containing an O2H group. |
| HYDROXYACETIC | • HYDROXYACETIC adj. as in hydroxyacetic acid, another name for glycolic acid. |
| HYDROXYLAMINE | • hydroxylamine n. (Inorganic chemistry) An explosive inorganic derivative of ammonia, NH2OH, used as a reducing agent… • hydroxylamine n. (Organic chemistry) Any organic derivative of this compound. • HYDROXYLAMINE n. a colorless odorless nitrogenous base that resembles ammonia in its reactions. |
| HYDROPEROXIDES | • hydroperoxides n. Plural of hydroperoxide. • HYDROPEROXIDE n. a compound containing an O2H group. |
| 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. |
| HYDROXYLAMINES | • hydroxylamines n. Plural of hydroxylamine. • HYDROXYLAMINE n. a colorless odorless nitrogenous base that resembles ammonia in its reactions. |
| HYDROXYPROLINE | • hydroxyproline n. (Biochemistry) A hydroxy derivative of the amino acid proline found in the structural proteins of connective tissue. • HYDROXYPROLINE n. an amino acid. |
| HYPEREXTENDING | • hyperextending v. Present participle of hyperextend. • HYPEREXTEND v. to extend so that the angle between bones of a joint is greater than normal. |
| 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. |
| 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. |
| HYDROXYPROLINES | • hydroxyprolines n. Plural of hydroxyproline. • HYDROXYPROLINE n. an amino acid. |
| XERORADIOGRAPHY | • xeroradiography n. A method of X-ray photography which uses an electrically charged metal plate instead of film. • XERORADIOGRAPHY n. radiography used esp. in mammographic screening for breast cancer that produces an image using X-rays in a manner similar to the way an image is produced by light in xerography. |