| DISHONORARY | • dishonorary adj. Causing dishonour; tending to disgrace. • DISHONORARY adj. causing dishonour. |
| HERESIOLOGY | • heresiology n. The study of heresy. • HERESIOLOGY n. the study of heresies. |
| HYDROLOGIES | • hydrologies n. Plural of hydrology. • HYDROLOGY n. the study of water resources. |
| HYDROLOGIST | • hydrologist n. Someone who is skilled in or practises hydrology. • HYDROLOGIST n. an expert in hydrology. |
| HYDROPONICS | • hydroponics n. The cultivation of plants in a nutrient solution rather than in the soil. • HYDROPONICS n. the practice of growing plants in a chemical solution without soil. |
| HYDROSCOPIC | • hydroscopic n. Misspelling of hygroscopic. • HYDROSCOPIC adj. relating to a hydroscope, also HYDROSCOPICAL. |
| HYGROLOGIES | • HYGROLOGY n. the study of humidity. |
| HYGROSCOPIC | • hygroscopic adj. (Physics, chemistry, botany) Readily taking up and retaining water, especially from the atmosphere. • HYGROSCOPIC adj. readily absorbing moisture from the air, also HYGROSCOPICAL. |
| HYPOCORISMA | • HYPOCORISMA n. the use of a pet name or nickname, also HYPOCORISM. |
| HYPOCORISMS | • hypocorisms n. Plural of hypocorism. • HYPOCORISM n. the use of a pet name or nickname, also HYPOCORISMA. |
| HYPONITROUS | • hyponitrous adj. Of or pertaining to hyponitrous acid or its derivatives. • HYPONITROUS adj. containing or derived from nitrogen having a lower valence than in nitrous compounds. |
| MONOHYBRIDS | • monohybrids n. Plural of monohybrid. • MONOHYBRID n. a cross between parents differing in one heritable character. |
| ORTHOSTICHY | • orthostichy n. (Botany) A row of leaves along a stem. • ORTHOSTICHY n. a straight row, e.g. of leaves vertically over one another on an axis. |
| POLYCHROISM | • polychroism n. Pleochroism. • POLYCHROISM n. the state of being polychroic. |
| POLYHISTORS | • polyhistors n. Plural of polyhistor. • POLYHISTOR n. a person of great and wide learning, also POLYHISTORIAN. |
| POLYHISTORY | • POLYHISTORY n. great and varied learning. |
| PORPHYROIDS | • porphyroids n. Plural of porphyroid. • PORPHYROID n. a metamorphic rock having a texture characterized by large crystals set in a finer groundmass. |
| PYROPHOBIAS | • PYROPHOBIA n. fear of fire. |
| PYROPHOBICS | • pyrophobics n. Plural of pyrophobic. • PYROPHOBIC n. one having an irrational fear of fires. |
| SPOROPHYTIC | • sporophytic adj. (Botany) Of or pertaining to a sporophyte plant. • sporophytic adj. (Botany) Having the characteristics of a sporophyte. • SPOROPHYTIC adj. of or like a sporophyte. |