| CYCADOPHYTE | • cycadophyte n. (Botany) Any plant of the division Cycadophyta; a cycad. • CYCADOPHYTE n. any of a division of usually unbranched mostly extinct gymnosperms. |
| DYOPHYSITES | • Dyophysites n. Plural of Dyophysite. • DYOPHYSITE n. a believer in the existence of two natures in Christ, human and divine, also DIOPHYSITE, DIPHYSITE. |
| HYDROGRAPHY | • hydrography n. (Nautical) The scientific measurement and description of the physical features and conditions of navigable… • HYDROGRAPHY n. the study of bodies of water. |
| HYDROPHYTES | • hydrophytes n. Plural of hydrophyte. • HYDROPHYTE n. an aquatic plant; an alga. |
| HYDROPHYTIC | • hydrophytic adj. Relating to hydrophytes. • HYDROPHYTIC adj. growing in or by water, also HYDROPHYTOUS. |
| HYDROPHYTON | • hydrophyton n. (Biology) A branched structure that supports the zooids in colonial hydrozoa. • HYDROPHYTON n. the coenosarc of a hydroid colony. |
| HYDROPOLYPS | • hydropolyps n. Plural of hydropolyp. • HYDROPOLYP n. a hydrozoan polyp. |
| HYPERPLOIDY | • hyperploidy n. The condition of being hyperploid. • HYPERPLOIDY n. the state of being hyperploid, in excess of but not exact multiple of diploid. |
| HYPOACIDITY | • hypoacidity n. (Pathology) The condition of having less than the normal amount of acidity in the stomach. • HYPOACIDITY n. abnormally low acidity, as of the contents of the stomach. |
| HYPOCYCLOID | • hypocycloid n. (Geometry) The locus of a point on the circumference of a circle that rolls without slipping inside… • HYPOCYCLOID n. a curve generated by a point on the circumference of a circle which rolls on the inside of another circle. |
| HYPOTHYROID | • hypothyroid adj. Of or pertaining to hypothyroidism. • hypothyroid adj. Having hypothyroidism. • HYPOTHYROID adj. affected with hypothyroidism. |
| POLYHYBRIDS | • polyhybrids n. Plural of polyhybrid. • POLYHYBRID n. a plant hybridised from many sources. |
| POLYHYDROXY | • polyhydroxy adj. (Organic chemistry) Having three or more hydroxy functional groups. • POLYHYDROXY adj. containing more than one hydroxyl group in the molecule. |
| TYROGLYPHID | • TYROGLYPHID n. a mite of the genus Tyroglyphus, including the cheesemite and the flour-mite. |