| 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. |
| XIPHIPLASTRA | • xiphiplastra n. Plural of xiphiplastron. • XIPHIPLASTRON n. in chelonians, one of the plates forming the plastron, lying posterior to the hypoplastron. |
| XIPHIPLASTRAL | • xiphiplastral adj. Relating to a xiphiplastron. • XIPHIPLASTRAL n. a type of chelonian. |
| XIPHIPLASTRALS | • XIPHIPLASTRAL n. a type of chelonian. |
| XIPHIPLASTRON | • xiphiplastron n. The posterior, or fourth lateral plate in the plastron of a turtle. • XIPHIPLASTRON n. in chelonians, one of the plates forming the plastron, lying posterior to the hypoplastron. |
| XIPHISTERNA | • xiphisterna n. Plural of xiphisternum. • XIPHISTERNUM n. the posterior and smallest of the three divisions of the sternum. |
| XIPHISTERNUM | • xiphisternum n. (Biology, medicine) Synonym of xiphoid process. • XIPHISTERNUM n. the posterior and smallest of the three divisions of the sternum. |
| XIPHISTERNUMS | • xiphisternums n. Plural of xiphisternum. • XIPHISTERNUM n. the posterior and smallest of the three divisions of the sternum. |
| XIPHOID | • xiphoid adj. Shaped like a sword, ensiform. • xiphoid adj. (Anatomy) Of or relating to the xiphisternum. • xiphoid n. (Anatomy) The xiphoid process. |
| XIPHOIDAL | • xiphoidal adj. Xiphoid; sword-shaped. • XIPHOIDAL adj. swordlike, also XIPHOID. |
| XIPHOIDS | • xiphoids n. Plural of xiphoid. • XIPHOID n. the xiphoid process or xiphisternum. |
| XIPHOPAGI | • xiphopagi n. Plural of xiphopagus. • XIPHOPAGUS n. a set of Siamese twins joined in the region of the xiphoid cartilage. |
| XIPHOPAGIC | • xiphopagic adj. (Rare) Synonym of xiphopagus. • XIPHOPAGIC adj. relating to a xiphopagus. |
| XIPHOPAGOUS | • xiphopagous adj. (Obsolete) Alternative form of xiphopagus. • XIPHOPAGOUS adj. like a xiphopagus, a set of Siamese twins joined in the region of the xiphoid cartilage. |
| XIPHOPAGUS | • xiphopagus adj. (Of conjoined twins) United at the xiphoid process. • xiphopagus n. (Countable) Either of a pair of congenitally joined twins (Siamese twin) united at the xiphoid process. • xiphopagus n. (Uncountable) The condition of being such a twin. |
| XIPHOPAGUSES | • XIPHOPAGUS n. a set of Siamese twins joined in the region of the xiphoid cartilage. |
| XIPHOPHYLLOUS | • xiphophyllous adj. (Botany) Having sword-shaped leaves. • XIPHOPHYLLOUS adj. having sword-shaped leaves. |
| 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. |
| XIPHOSURANS | • xiphosurans n. Plural of xiphosuran. • XIPHOSURAN n. a member of the Xiphosura. |