| AEROPHYTES | • aerophytes n. Plural of aerophyte. • AEROPHYTE n. a plant obtaining all its nourishment from the air; an epiphyte. |
| CORYPHENES | • coryphenes n. Plural of coryphene. • CORYPHENE n. a fish of the genus Coryphaena. |
| HETEROTOPY | • heterotopy n. (Biology) A deviation from the natural position; abnormal placement. • heterotopy n. (Biology) A deviation from the natural position of parts, supposed to take place over thousands of years… • HETEROTOPY n. displacement of an organ of the body, also HETEROTOPIA. |
| HYPERBOLAE | • hyperbolae n. Plural of hyperbola. • hyperbolæ n. Plural of hyperbola. • HYPERBOLA n. a type of mathematical curve. |
| HYPERBOLES | • hyperboles n. Plural of hyperbole. • HYPERBOLE n. (Greek) impression by extravagant exaggeration. |
| HYPERNOVAE | • hypernovae n. Plural of hypernova. • HYPERNOVA n. an exploding star than produces even more energy and light than a supernova. |
| 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. |
| HYPERPNOEA | • hyperpnoea n. Alternative spelling of hyperpnea. • hyperpnœa n. Obsolete spelling of hyperpnea. • HYPERPNOEA n. abnormally fast breathing, also HYPERPNEA. |
| HYPERPOWER | • hyperpower n. (International relations) An international hegemon, more powerful than a superpower. • hyperpower n. (Mathematics) Tetration. • HYPERPOWER n. a state that is vastly stronger than any potential rival. |
| HYPOCENTER | • hypocenter n. (US) Alternative spelling of hypocentre. • HYPOCENTER n. the point under the earth's surface where the energy of an earthquake is first released. |
| HYPOCENTRE | • hypocentre n. (Geology) The focus of an earthquake, directly under the epicentre. • hypocentre n. (Military) The point on the surface below an atmospheric explosion; ground zero. • HYPOCENTRE n. the point on the earth directly below the centre of a nuclear explosion. |
| HYPSOMETER | • hypsometer n. An instrument that measures altitude indirectly by measuring the boiling point of water (which varies… • HYPSOMETER n. an instrument for measuring height of trees through triangulation. |
| NEPHROPEXY | • nephropexy n. (Surgery) suspension or fixation of the kidney. • NEPHROPEXY n. the fixation of a floating kidney. |
| PREHENSORY | • prehensory adj. Adapted to seize or grasp; prehensile. • PREHENSORY adj. adapted to seize or grasp; prehensile, also PREHENSILE, PREHENSIVE, PREHENSORIAL. |
| SPHEROCYTE | • spherocyte n. (Cytology) A red blood cell that is spherical rather than biconcave, as occurs in spherocytosis. • SPHEROCYTE n. an abnormal red-blood cell that is spherical rather than disc-shaped. |
| THEROPHYTE | • therophyte n. (Biology) Any plant which survives unfavourable seasons in the form of seeds only. • THEROPHYTE n. a plant that overwinters as a seed. |
| XEROPHYTES | • xerophytes n. Plural of xerophyte. • XEROPHYTE n. a plant thriving in desert conditions. |