| 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. |
| 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. |
| 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. |
| HYDROXYPROLINES | • hydroxyprolines n. Plural of hydroxyproline. • HYDROXYPROLINE n. an amino acid. |
| HYPOPHARYNX | • hypopharynx n. (Anatomy) bottom part of the pharynx, the part of the throat that connects to the esophagus. • HYPOPHARYNX n. an appendage or thickened fold on the floor of the mouth of many insects that resembles a tongue. |
| HYPOPHARYNXES | • hypopharynxes n. Plural of hypopharynx. • HYPOPHARYNX n. an appendage or thickened fold on the floor of the mouth of many insects that resembles a tongue. |
| PHOTOXYLOGRAPHY | • photoxylography n. A process in which a photograph is printed on wood to use as a template for engraving. • PHOTOXYLOGRAPHY n. wood engraving after a photographic impression on a woodblock. |
| POLYHYDROXY | • polyhydroxy adj. (Organic chemistry) Having three or more hydroxy functional groups. • POLYHYDROXY adj. containing more than one hydroxyl group in the molecule. |
| XEROPHYTICALLY | • xerophytically adv. As a xerophyte. • XEROPHYTIC adv. able to withstand drought. |
| XYLOGRAPHY | • xylography n. (Rare) The art of making xylographs. • XYLOGRAPHY n. the art of making engravings on wood, esp. for printing. |
| XYLOPYROGRAPHY | • xylopyrography n. (Art) The art of burning pictures onto wood. • XYLOPYROGRAPHY n. engraving designs on wood with hot poker. |
| XYLOTYPOGRAPHIC | • xylotypographic adj. Of or pertaining to xylotypography. • XYLOTYPOGRAPHIC adj. relating to, or printed from, wooden type. |
| XYLOTYPOGRAPHY | • xylotypography n. Printing using the medium of wooden blocks. • XYLOTYPOGRAPHY n. printing from wooden type. |