| AMPHIOXUSES | • amphioxuses n. Plural of amphioxus. • AMPHIOXUS n. (Greek) a fishlike creature, two or three inches long, found in temperate seas, aka lancelet. |
| ANDROSPHINXES | • androsphinxes n. Plural of androsphinx. • ANDROSPHINX n. a sphinx having the head of a man. |
| EXECUTORSHIPS | • executorships n. Plural of executorship. • EXECUTORSHIP n. the office of executor. |
| EXSTROPHIES | • exstrophies n. Plural of exstrophy. • EXSTROPHY n. congenital eversion of a hollow organ, esp. the bladder. |
| HIERACOSPHINXES | • hieracosphinxes n. Plural of hieracosphinx. • HIERACOSPHINX n. in ancient Egyptian art, a hawk-headed sphinx. |
| HYPEREXTENSIONS | • hyperextensions n. Plural of hyperextension. • HYPEREXTENSION n. the extension of a joint beyond its normal range. |
| HYPERPROSEXIAS | • HYPERPROSEXIA n. abnormal powers of perception, as in Australian aboriginal trackers. |
| LEXICOGRAPHISTS | • lexicographists n. Plural of lexicographist. • LEXICOGRAPHIST n. one who makes dictionaries. |
| OXYSULPHIDES | • oxysulphides n. Plural of oxysulphide. • OXYSULPHIDE n. a compound containing an element combined with oxygen and sulphur. |
| PHOENIXISMS | • PHOENIXISM n. the practice of forming a new company with same directors, workforce etc. from a bankrupt company. |
| PHOTOOXIDISES | • PHOTOOXIDISE v. to undergo photooxidation, also PHOTOOXIDIZE. |
| PSYCHOSEXUALITY | • psychosexuality n. The psychological aspects of sexuality. • PSYCHOSEXUALITY n. the psychic factors of sex. |
| SEXTONSHIP | • sextonship n. The office or position of a sexton. • SEXTONSHIP n. the office of a sexton. |
| SEXTONSHIPS | • sextonships n. Plural of sextonship. • SEXTONSHIP n. the office of a sexton. |
| SULPHADOXINES | • SULPHADOXINE n. an antibiotic drug of the sulphonamide group, commonly used in combination with pyrimethamine to treat malaria, also SULFADOXINE. |
| SULPHOXIDES | • sulphoxides n. Plural of sulphoxide. • SULPHOXIDE n. any compound containing a sulphinyl group and a hydrocarbon radical, also SULFOXIDE. |
| XEROPHYTISMS | • XEROPHYTISM n. being a xerophyte. |
| XIPHOPAGUSES | • XIPHOPAGUS n. a set of Siamese twins joined in the region of the xiphoid cartilage. |