| 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. |
| XIPHOSURAN | • xiphosuran n. (Zoology) Any member of the order Xiphosura, including horseshoe crabs. • xiphosuran adj. (Zoology) Of or pertaining to the order Xiphosura. • XIPHOSURAN adj. belonging to the Xiphosura, an order of Arthropoda of which the only survivors are the king crabs. |
| AUXOTROPHIC | • auxotrophic adj. (Biology) Describing a strain of organism that requires a specific metabolic substance that the parent… • AUXOTROPHIC adj. requiring a specific growth substance beyond the minimum required for normal metabolism. |
| PYRRHULOXIA | • pyrrhuloxia n. Cardinalis sinuatus (desert cardinal), a North American bird with grey and red plumage. • Pyrrhuloxia prop.n. (Archaic) A taxonomic genus within the family Fringillidae – certain birds similar to cardinals, notably… • PYRRHULOXIA n. a grey-and-pink crested bunting of Central and SW North America, with a short parrot-like bill. |
| XEROPHILOUS | • xerophilous adj. Able to thrive in dry weather. • XEROPHILOUS adj. drought loving, particularly pertaining to plants. |
| XIPHOSURANS | • xiphosurans n. Plural of xiphosuran. • XIPHOSURAN n. a member of the Xiphosura. |
| AUXOTROPHIES | • auxotrophies n. Plural of auxotrophy. • AUXOTROPHY n. the state of being auxotrophic, requiring a specific growth substance beyond the minimum required for normal metabolism. |
| EXECUTORSHIP | • executorship n. The office or position of an executor. • EXECUTORSHIP n. the office of executor. |
| PYRRHULOXIAS | • pyrrhuloxias n. Plural of pyrrhuloxia. • PYRRHULOXIA n. a grey-and-pink crested bunting of Central and SW North America, with a short parrot-like bill. |
| SUPERHELIXES | • superhelixes n. Plural of superhelix. • SUPERHELIX n. a helix, as of DNA, which has its axis arranged in a helical coil. |
| XIPHISTERNUM | • xiphisternum n. (Biology, medicine) Synonym of xiphoid process. • XIPHISTERNUM n. the posterior and smallest of the three divisions of the sternum. |
| EXECUTORSHIPS | • executorships n. Plural of executorship. • EXECUTORSHIP n. the office of executor. |
| XIPHISTERNUMS | • xiphisternums n. Plural of xiphisternum. • XIPHISTERNUM n. the posterior and smallest of the three divisions of the sternum. |
| HYPERSEXUALITY | • hypersexuality n. The desire for sexual activity at levels high enough to be considered clinically significant. • HYPERSEXUALITY n. the state of being hypersexual. |
| XIPHIHUMERALIS | • xiphihumeralis n. A long, flat strip of pectoral muscle comprising a band of parallel fibres, found in felines. • XIPHIHUMERALIS n. in vertebrates, a muscle leading from the xiphoid cartilage to the humerus. |
| PEROXYSULPHURIC | • PEROXYSULPHURIC adj. as in peroxysulphuric acid. |