| BIORHYTHMS | • biorhythms n. Plural of biorhythm. • BIORHYTHM n. a periodic change in the behaviour or physiology of many animals and plants (e.g. hibernation and migration) mediated by hormones which are in turn influenced by changes in day-length. |
| HALOPHYTES | • halophytes n. Plural of halophyte. • HALOPHYTE n. a plant found growing in salt marshes, or in the sea. |
| HELOPHYTES | • helophytes n. Plural of helophyte. • HELOPHYTE n. any perennial marsh plant that bears its overwintering buds in the mud below the surface. |
| HOLOPHYTES | • holophytes n. Plural of holophyte. • HOLOPHYTE n. a plant maintained entirely by its own organs. |
| HYDATHODES | • hydathodes n. Plural of hydathode. • HYDATHODE n. an epidermal water-excreting organ. |
| HYDROPATHS | • hydropaths n. Plural of hydropath. • HYDROPATH n. a practitioner of hydropathy, the study of treating diseases with water. |
| HYLOPHYTES | • HYLOPHYTE n. a woodland plant. |
| HYLOTHEISM | • hylotheism n. Theory equating matter with God or merging one into the other (see pantheism). • hylotheism n. Doctrine of belief that matter is God, or that there is no God except matter and the universe (see materialism). • HYLOTHEISM n. the doctrine that there is no God but matter and the universe. |
| HYLOTHEIST | • hylotheist n. A proponent of hylotheism. • HYLOTHEIST n. one who identifies God with matter or universe. |
| HYPOTHESES | • hypotheses n. Plural of hypothesis. • HYPOTHESIS n. a supposition, an assumption. |
| HYPOTHESIS | • hypothesis n. (Sciences) Used loosely, a tentative conjecture explaining an observation, phenomenon or scientific… • hypothesis n. (General) An assumption taken to be true for the purpose of argument or investigation. • hypothesis n. (Grammar) The antecedent of a conditional statement. |
| ICHTHYOIDS | • ichthyoids n. Plural of ichthyoid. • ICHTHYOID n. any fishlike creature. |
| ICHTHYOSES | • ichthyoses n. Plural of ichthyosis. • ICHTHYOSIS n. a disease in which the skin is thick, rough, and scaly. |
| ICHTHYOSIS | • ichthyosis n. (Pathology) A disease which gives the sufferer a dry, scaly skin. • ICHTHYOSIS n. a disease in which the skin is thick, rough, and scaly. |
| LITHOPHYSA | • LITHOPHYSA n. a bladderlike spherulite, also LITHOPHYSE. |
| LITHOPHYSE | • lithophyse n. (Mineralogy) A spherulitic cavity, often with concentric chambers, observed in some volcanic rocks… • LITHOPHYSE n. a bladderlike spherulite, also LITHOPHYSA. |
| PHYTOLITHS | • phytoliths n. Plural of phytolith. • PHYTOLITH n. a microscopic particle in plants. |
| PSYCHOPATH | • psychopath n. A person with a personality disorder indicated by a pattern of lying, cunning, manipulating, glibness… • psychopath n. (Figurative) A person with no moral conscience. • psychopath n. (Figurative) A person who perpetrates especially gruesome or bizarre violent acts. |
| YOUTHHEADS | • YOUTHHEAD n. (obsolete) youth, also YOUNGTH, YOUTHHOOD. |
| YOUTHHOODS | • youthhoods n. Plural of youthhood. • YOUTHHOOD n. (obsolete) youth, also YOUNGTH, YOUTHHEAD. |