| SUPERHELIX | • superhelix n. (Molecular biology) The shape formed by a helix which in turn is twisted into a larger helix. • SUPERHELIX n. a helix, as of DNA, which has its axis arranged in a helical coil. |
| HETEROAUXIN | • heteroauxin n. A growth-promoting hormone, 3-indoleacetic acid, occurring in some plants. • HETEROAUXIN n. a natural plant hormone, used esp. for stimulating growth and root formation in plant cutting. |
| EXCHEQUERING | • exchequering v. Present participle of exchequer. • EXCHEQUER v. to place in an exchequer or treasury. |
| EXECUTORSHIP | • executorship n. The office or position of an executor. • EXECUTORSHIP n. the office of executor. |
| EXTINGUISHER | • extinguisher n. One who, or that which, extinguishes something. • EXTINGUISHER n. a device that extinguishes. |
| HETERAUXESIS | • heterauxesis n. (Botany) unequal growth of a cell, or of part of a plant. • HETERAUXESIS n. unsymmetrical growth. |
| HETEROAUXINS | • heteroauxins n. Plural of heteroauxin. • HETEROAUXIN n. a natural plant hormone, used esp. for stimulating growth and root formation in plant cutting. |
| HEXAFLUORIDE | • hexafluoride n. (Chemistry) any fluoride containing six fluorine atoms in each molecule. • HEXAFLUORIDE n. a chemical compound with the general formula XF6. |
| SUPERHELIXES | • superhelixes n. Plural of superhelix. • SUPERHELIX n. a helix, as of DNA, which has its axis arranged in a helical coil. |
| EXECUTORSHIPS | • executorships n. Plural of executorship. • EXECUTORSHIP n. the office of executor. |
| EXTINGUISHERS | • extinguishers n. Plural of extinguisher. • EXTINGUISHER n. a device that extinguishes. |
| HEXAFLUORIDES | • hexafluorides n. Plural of hexafluoride. • HEXAFLUORIDE n. a chemical compound with the general formula XF6. |
| EXTRAVEHICULAR | • extravehicular adj. Relating to, on happening in, the space outside a vehicle, especially a spacecraft in space. • extra-vehicular adj. Alternative spelling of extravehicular. • EXTRAVEHICULAR adj. taking place outside a vehicle (as a spacecraft). |
| HYPERSEXUALITY | • hypersexuality n. The desire for sexual activity at levels high enough to be considered clinically significant. • HYPERSEXUALITY n. the state of being hypersexual. |
| HETEROSEXUALITY | • heterosexuality n. The state of being sexually and romantically attracted primarily or exclusively to persons of the opposite sex. • heterosexuality n. Sexual activity with a person of the opposite sex. • HETEROSEXUALITY n. the state of being heterosexual. |