| CHLORENCHYMA | • chlorenchyma n. (Botany) A mechanical, supportive ground tissue in plants containing chloroplasts. • CHLORENCHYMA n. plant stem tissue containing chlorophyll. |
| EURHYTHMICAL | • eurhythmical adj. Harmonious. • EURHYTHMICAL adj. relating to eurhythmy, rhythmical movement or order, also EURHYTHMIC, EURYTHMIC, EURYTHMICAL. |
| HAMMERCLOTHS | • hammercloths n. Plural of hammercloth. • hammer-cloths n. Plural of hammer-cloth. • HAMMERCLOTH n. a cloth covering a coach box. |
| HELICHRYSUMS | • helichrysums n. Plural of helichrysum. • HELICHRYSUM n. a genus of composite plants, the flowers of which keep their colour and shape when dried. |
| HELIOCHROMES | • heliochromes n. Plural of heliochrome. • HELIOCHROME n. (tradename) a photograph in natural colours. |
| HELIOCHROMIC | • heliochromic adj. Pertaining to, or produced by, heliochromy. • HELIOCHROMIC adj. like a heliochrome, a photograph that reproduces the natural colours of the subject. |
| HEMORRHOIDAL | • hemorrhoidal adj. Of or relating to hemorrhoids. • HEMORRHOIDAL adj. of or like a haemorrhoid. • HEMORRHOIDAL n. a hemorrhoidal part (as an artery or vein). |
| HOLOHEDRISMS | • HOLOHEDRISM n. the property of having the full number of symmetrically arranged planes crystallographically possible. |
| HOMEOTHERMAL | • homeothermal adj. Alternative form of homeothermic. • HOMEOTHERMAL adj. keeping the same temperature, warm-blooded, also HOMOEOTHERMAL, HOMOEOTHERMIC, HOMOEOTHERMOUS, HOMOIOTHERMAL, HOMOTHERMAL, HOMOTHERMIC. |
| HOMESCHOOLER | • homeschooler n. One who homeschools a student (typically the parent). • homeschooler n. A student who is homeschooled, a homeschooled student. • home-schooler n. Alternative form of homeschooler. |
| HYDROTHERMAL | • hydrothermal adj. Of, or relating to hot water. • hydrothermal adj. (Geology) Of or relating to emanations of hot water that are rich in minerals, or to the rocks formed from them. • HYDROTHERMAL adj. designating naturally hot underground water that has geological effects. |
| HYPERTHERMAL | • hyperthermal adj. Of, pertaining to, or causing hyperthermia. • hyperthermal n. (Geology) Any of several brief geological periods of global warming. • HYPERTHERMAL adj. suffering from hyperthermia. |
| METHOXYCHLOR | • methoxychlor n. (Organic chemistry) A synthetic organochlorine used as an insecticide. • METHOXYCHLOR n. a relatively nontoxic organochlorine insecticide. |
| NYCHTHEMERAL | • nychthemeral adj. Lasting a nychthemeron (24 hours). • NYCHTHEMERAL adj. (Greek) of or relating to a nychthemeron or 24-hour period. |
| PHOTOTHERMAL | • photothermal adj. (Physics) Involving the production of heat by photoexcitation. • PHOTOTHERMAL adj. of or concerned with light and heat, esp. the production of heat by light, also PHOTOTHERMIC. |
| RHOMBOHEDRAL | • rhombohedral adj. (Crystallography) Having three equal axes and oblique angles. • RHOMBOHEDRAL adj. shaped like a rhombohedron. |
| THERMOHALINE | • thermohaline adj. Of, or relating to a combination of temperature and salinity. • thermohaline n. Thermohaline circulation. • THERMOHALINE adj. involving both temperature and salinity. |
| THERMOPHILES | • thermophiles n. Plural of thermophile. • THERMOPHILE n. a bacteria, plant etc. requiring or thriving in high temperatures, also THERMOPHIL, THERMOPHILIC, THERMOPHILOUS. |
| THERMOPHILIC | • thermophilic adj. (Biology) of, or relating to a thermophile; living and thriving at relatively high temperatures. • THERMOPHILIC adj. of plants etc. requiring or thriving in high temperatures, also THERMOPHIL, THERMOPHILE, THERMOPHILOUS. |
| TROCHELMINTH | • trochelminth n. (Zoology, obsolete) Any member of the Trochelminthes. • TROCHELMINTH n. any invertebrate of the former taxonomic group Trochelminthes, which included the rotifers and gastrotrichs. |