| ASCENSIONIST | • ascensionist n. One who carries out ascents, such as a balloonist or mountaineer. • ASCENSIONIST n. a person who has completed a mountain ascent, esp. a notable one. |
| DELUSIONISTS | • delusionists n. Plural of delusionist. • DELUSIONIST n. one who suffers from delusions. |
| DIFFUSIONIST | • diffusionist adj. Of or pertaining to diffusionism. • diffusionist n. A proponent of diffusionism. • DIFFUSIONIST n. an anthropologist who emphasizes the role of diffusion in the history of culture rather than independent invention or discovery. |
| DIVERSIONIST | • diversionist n. One engaged in diversionary, disruptive, or subversive activities. • diversionist n. A person who deviates politically. • DIVERSIONIST n. one engaged in diversionary activities. |
| DIVISIONISTS | • divisionists n. Plural of divisionist. • DIVISIONIST n. a practitioner of divisionism. |
| EXCLUSIONIST | • exclusionist n. A person who advocates the exclusion of someone or something. • exclusionist adj. Of or pertaining to an exclusionist, or to exclusionism. • EXCLUSIONIST n. one who would exclude another from some right or privilege. |
| EXCURSIONIST | • excursionist n. A person who goes on an excursion; a traveller or tourist. • EXCURSIONIST n. a person who goes on an excursion. |
| EXPANSIONIST | • expansionist adj. Of or pertaining to expansionism. • expansionist n. An advocate of expansionism. • EXPANSIONIST n. an advocate of expansionism. |
| EXTENSIONIST | • extensionist n. One who favours or advocates extension. • EXTENSIONIST n. an advocate of extension; a university extension lecturer or student. |
| ILLUSIONISTS | • illusionists n. Plural of illusionist. • ILLUSIONIST n. a person who produces illusory effects. |
| IMMERSIONIST | • immersionist n. (Theology) One who holds the doctrine that immersion is an essential part of Christian baptism. • IMMERSIONIST n. a person who favours or practises baptism by immersion. |
| INFUSIONISTS | • infusionists n. Plural of infusionist. • INFUSIONIST n. a believer in infusionism. |
| INTRUSIONIST | • intrusionist n. (Historical) One who favours the appointment of a clergyman to a parish, by a patron, against the wishes… • INTRUSIONIST n. a person who intrudes, esp. of those who, before the Scottish Disruption of 1843, refused a parish the right of objecting to the settlement of an obnoxious minister by a patron. |
| OBSESSIONIST | • obsessionist n. A person who has an obsession; an obsessive. • OBSESSIONIST n. someone who is obsessed by a fixed idea. |
| PERFUSIONIST | • perfusionist n. A trained clinician who operates the heart-lung machine during cardiac and other surgeries. • PERFUSIONIST n. the member of a surgical team administering continuous blood transfusion. |
| PRECISIONIST | • precisionist n. One who values precision. • precisionist n. Alternative form of precisianist: precisian; a religious purist or Puritan. • PRECISIONIST n. someone who insists on precision. |
| REVISIONISTS | • revisionists n. Plural of revisionist. • REVISIONIST n. a supporter of revisionism. |
| SECESSIONIST | • secessionist n. A person who secedes or supports secession from a political union or an alliance or organisation. • secessionist adj. Seceding or supporting secession. • SECESSIONIST n. one who joins in a secession or maintains that secession is a right. |
| SECLUSIONIST | • seclusionist n. One who supports seclusionism. • SECLUSIONIST n. one who relishes seclusion. |