| ASCENSIONISTS | • ascensionists n. Plural of ascensionist. • ASCENSIONIST n. a person who has completed a mountain ascent, esp. a notable one. |
| DIFFUSIONISTS | • diffusionists n. Plural of diffusionist. • DIFFUSIONIST n. an anthropologist who emphasizes the role of diffusion in the history of culture rather than independent invention or discovery. |
| DIVERSIONISTS | • diversionists n. Plural of diversionist. • DIVERSIONIST n. one engaged in diversionary activities. |
| EXCLUSIONISTS | • exclusionists n. Plural of exclusionist. • EXCLUSIONIST n. one who would exclude another from some right or privilege. |
| EXCURSIONISTS | • excursionists n. Plural of excursionist. • EXCURSIONIST n. a person who goes on an excursion. |
| EXPANSIONISTS | • expansionists n. Plural of expansionist. • EXPANSIONIST n. an advocate of expansionism. |
| EXTENSIONISTS | • extensionists n. Plural of extensionist. • EXTENSIONIST n. an advocate of extension; a university extension lecturer or student. |
| IMMERSIONISTS | • immersionists n. Plural of immersionist. • IMMERSIONIST n. a person who favours or practises baptism by immersion. |
| INTRUSIONISTS | • intrusionists n. Plural of intrusionist. • 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. |
| OBSESSIONISTS | • obsessionists n. Plural of obsessionist. • OBSESSIONIST n. someone who is obsessed by a fixed idea. |
| PERFUSIONISTS | • perfusionists n. Plural of perfusionist. • PERFUSIONIST n. the member of a surgical team administering continuous blood transfusion. |
| PRECISIONISTS | • precisionists n. Plural of precisionist. • PRECISIONIST n. someone who insists on precision. |
| SECESSIONISTS | • secessionists n. Plural of secessionist. • SECESSIONIST n. one who joins in a secession or maintains that secession is a right. |
| SECLUSIONISTS | • seclusionists n. Plural of seclusionist. • SECLUSIONIST n. one who relishes seclusion. |