| ANTHOPHYLLITE | • anthophyllite n. (Mineralogy) A dark brown amphibole mineral; a mixed silicate of iron and magnesium. • ANTHOPHYLLITE n. an orthorhombic ferromagnesian amphibole which occurs usually as fibrous or asbestiform masses. |
| DIPHTHONGALLY | • diphthongally adv. By means of a diphthong. • DIPHTHONGAL adv. of or like a diphthong. |
| HERNIORRHAPHY | • herniorrhaphy n. (Surgery) repair of a hernia by means of sutures. • HERNIORRHAPHY n. the surgical repair of a hernia by an operation involving suturing. |
| HYMNOGRAPHIES | • HYMNOGRAPHY n. the study of writing hymns. |
| HYPHENISATION | • HYPHENISATION n. the process of hyphenising, also HYPHENIZATION. |
| HYPHENIZATION | • hyphenization n. Hyphenation. • HYPHENIZATION n. the process of hyphenizing, also HYPHENISATION. |
| HYPOCHONDRIAC | • hypochondriac adj. Related to, or affected by hypochondria. • hypochondriac adj. Related to, or located in the hypochondrium. • hypochondriac n. A person affected with hypochondria. |
| HYPOCHONDRIAS | • hypochondrias n. Plural of hypochondria. • HYPOCHONDRIA n. suffering from imaginary illness. |
| HYPOGNATHISMS | • HYPOGNATHISM n. the state of being hypognathous. |
| HYPOTHECATING | • hypothecating v. Present participle of hypothecate. • HYPOTHECATE v. to pledge as security without title or possession. |
| HYPOTHECATION | • hypothecation n. The use of property, or an existing mortgage, as security for a loan, etc. • hypothecation n. (Britain) A tax levied for a specific expenditure. • HYPOTHECATION n. the act of taking a mortgage. |
| HYPOXANTHINES | • hypoxanthines n. Plural of hypoxanthine. • HYPOXANTHINE n. a purine base found in plant and animal tissues that yields xanthine on oxidation. |
| ICHTHYOPSIDAN | • ICHTHYOPSIDAN n. a member of the Ichthyopsida, amphibians, fishes and fishlike vertebrates, also ICHTHYOPSID. |
| ONYCHOPHAGIES | • ONYCHOPHAGY n. the habit of biting one's fingernails. |
| ONYCHOPHAGIST | • onychophagist n. (Rare) A person who bites his or her fingernails. • ONYCHOPHAGIST n. one who bites their fingernails. |
| PHTHALOCYANIN | • phthalocyanin n. Alternative form of phthalocyanine. • PHTHALOCYANIN n. any of a group of green and blue organic colouring matters of great fastness and brilliance, also PHTHALOCYANINE. |
| PHYCOXANTHINS | • PHYCOXANTHIN n. a yellow pigment found in diatoms, brown seaweeds etc. |
| PHYSHARMONICA | • PHYSHARMONICA n. an early form of harmonium. |