| HEMIHEDRA | • hemihedra n. Plural of hemihedron. • HEMIHEDRON n. a solid derived in a hemihedral way, such as a tetrahedron. |
| HEMIHEDRAL | • hemihedral adj. (Of a crystal) Having only half the plane faces needed for the highest degree of symmetry in its system. • HEMIHEDRAL adj. of a crystal or crystal class, having half of the maximum number of faces or symmetry planes possible for a given crystal system. |
| HEMIHYDRATE | • hemihydrate n. (Chemistry) A hydrate whose solid contains one molecule of water of crystallization per two molecules… • HEMIHYDRATE n. a hydrate, such as plaster of paris, containing half a mole of water to one mole of the compound forming the hydrate. |
| MISSHEATHED | • missheathed adj. (Archaic) Wrongly sheathed; sheathed in a wrong place. • MISSHEATHED adj. (Shakespeare) wrongly sheathed. |
| HEMICHORDATE | • hemichordate n. (Biology) Any of many marine worms, of the phylum Hemichordata, that have a primitive notochord. • hemichordate adj. Of, pertaining to, or characteristic of these animals. • HEMICHORDATE n. a kind of marine worm. |
| HEMIHYDRATED | • hemihydrated adj. (Chemistry) In the form of a hemihydrate. • HEMIHYDRATED adj. in the form of a hemihydrate. |
| HEMIHYDRATES | • hemihydrates n. Plural of hemihydrate. • HEMIHYDRATE n. a hydrate, such as plaster of paris, containing half a mole of water to one mole of the compound forming the hydrate. |
| HEMICHORDATES | • hemichordates n. Plural of hemichordate. • HEMICHORDATE n. a kind of marine worm. |
| HERMAPHRODITE | • hermaphrodite n. An individual or organism possessing ambiguous sexual organs, typically including both types of gonads. • hermaphrodite n. A person or thing possessing two opposing qualities. • hermaphrodite n. (Nautical) A hermaphrodite brig. |
| HEADMASTERSHIP | • headmastership n. The role or position of headmaster. • HEADMASTERSHIP n. the office of headmaster. |
| HEMISPHEROIDAL | • hemispheroidal adj. Approximating a hemisphere in shape. • HEMISPHEROIDAL adj. in the form of a half-sphere. |
| HERMAPHRODITES | • hermaphrodites n. Plural of hermaphrodite. • HERMAPHRODITE n. a human being, animal or plant with the organs of both sexes. |
| DICHLOROMETHANE | • dichloromethane n. (Organic chemistry) The partially halogenated hydrocarbon CH2Cl2 widely used as a solvent. • DICHLOROMETHANE n. a noxious colourless liquid widely used as a solvent, e.g. in paint strippers. |
| DIPHENHYDRAMINE | • diphenhydramine n. (Pharmacology) An antihistamine and anticholinergic drug that blocks the effect of histamine at H1 receptor… • DIPHENHYDRAMINE n. a type of antihistamine. |
| HEADMASTERSHIPS | • headmasterships n. Plural of headmastership. • HEADMASTERSHIP n. the office of headmaster. |
| METHYLPHENIDATE | • methylphenidate n. (Medicine) A stimulant used to treat attention deficit hyperactivity disorder and narcolepsy, better… • METHYLPHENIDATE n. a stimulant used in treating attention deficit disorder. |