| CONTORTIONS | • contortions n. Plural of contortion. • CONTORTION n. the state of being contorted. |
| COOPTATIONS | • cooptations n. Plural of cooptation. • co-optations n. Plural of co-optation. • COOPTATION n. the act of coopting, also COOPTION. |
| COROTATIONS | • corotations n. Plural of corotation. • COROTATION n. the act of rotating in conjunction with another body. |
| COSTOTOMIES | • COSTOTOMY n. surgical incision into a rib. |
| EROTOLOGIST | • erotologist n. One who studies erotology. • EROTOLOGIST n. a student of erotology. |
| GNOTOBIOTES | • gnotobiotes n. Plural of gnotobiote. • GNOTOBIOTE n. a germfree animal. |
| LITHOTOMOUS | • LITHOTOMOUS adj. boring in rocks, as some molluscs. |
| NOTODONTIDS | • notodontids n. Plural of notodontid. • NOTODONTID n. a member of the Notodontidae genus of moths. |
| ODONTOLITES | • odontolites n. Plural of odontolite. • ODONTOLITE n. a fossil bone or tooth coloured blue with phosphate of iron, aka bone-turquoise. |
| ONTOLOGISTS | • ontologists n. Plural of ontologist. • ONTOLOGIST n. one who is versed in or treats of ontology. |
| OPTOLOGISTS | • optologists n. Plural of optologist. • OPTOLOGIST n. an optician. |
| OSTEOLOGIST | • osteologist n. A scientist or physician whose speciality is osteology. • OSTEOLOGIST n. one who practises osteology. |
| OSTEOTOMIES | • osteotomies n. Plural of osteotomy. • OSTEOTOMY n. the dissection or anatomy of bones. |
| OUTSHOOTING | • outshooting v. Present participle of outshoot. • OUTSHOOT v. to surpass in shooting. |
| PHOTOLITHOS | • PHOTOLITHO n. (short for) a photolithograph. |
| PROTOCOLIST | • protocolist n. One who draws up protocols. • PROTOCOLIST n. a registrar or clerk. |
| SOMATOTONIA | • SOMATOTONIA n. a pattern of temperament and body type in which alertness and aggression are combined with mesomorphic build. |
| SOMATOTONIC | • somatotonic adj. Designating a personality type characterised as aggressive and extroverted. • SOMATOTONIC n. a person who has an extroverted and aggressive personality type. |
| TOPOLOGISTS | • topologists n. Plural of topologist. • TOPOLOGIST n. one who studies topology. |