| AETIOLOGISTS | • aetiologists n. Plural of aetiologist. • ætiologists n. Plural of ætiologist.
 • AETIOLOGIST n. a student of aetiology, also ETIOLOGIST.
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| AGRITOURISTS | • agritourists n. Plural of agritourist. • AGRITOURIST n. one who engages in agritourism, the business of providing holidays in an agricultural setting.
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| APOSTATISING | • apostatising v. Present participle of apostatise. • APOSTATISE v. to change one's religious allegiance; forsake one's principles, also APOSTATIZE.
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| CASTIGATIONS | • castigations n. Plural of castigation. • CASTIGATION n. the act of castigating.
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| EPIGLOTTISES | • epiglottises n. Plural of epiglottis. • EPIGLOTTIS n. a cartilaginous flap over the glottis.
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| FROSTBITINGS | • FROSTBITING n. the act of frostbiting. | 
| FUSTIGATIONS | • fustigations n. Plural of fustigation. • FUSTIGATION n. beating with a club.
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| GEOSCIENTIST | • geoscientist n. A scholar or researcher in geoscience, an inclusive term for the earth sciences. • GEOSCIENTIST n. a student of geoscience.
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| HISTOLOGISTS | • histologists n. Plural of histologist. • HISTOLOGIST n. one who studies organic tissue.
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| HOUSESITTING | • housesitting v. Present participle of housesit. • house-sitting v. Present participle of house-sit.
 • house␣sitting v. Present participle of house sit.
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| INSTIGATIONS | • instigations n. Plural of instigation. • INSTIGATION n. the act of instigating.
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| LITHOLOGISTS | • lithologists n. Plural of lithologist. • LITHOLOGIST n. a student of lithology.
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| NEGATIONISTS | • negationists n. Plural of negationist. • NEGATIONIST n. someone who merely denies, without offering any positive assertion.
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| POSTEDITINGS | • POSTEDITING n. the act of editing after a piece of writing has been produced or printed by a machine. | 
| SHORTLISTING | • shortlisting v. Present participle of shortlist. • short-listing v. Present participle of short-list.
 • SHORTLIST v. to include on a shortlist.
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| STEGOPHILIST | • STEGOPHILIST n. one who climbs buildings for sport. | 
| STORIOLOGIST | • storiologist n. One who studies folk tales. • STORIOLOGIST n. a folklorist.
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| TRIBOLOGISTS | • tribologists n. Plural of tribologist. • TRIBOLOGIST n. a student of tribology.
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| TRITAGONISTS | • tritagonists n. Plural of tritagonist. • TRITAGONIST n. in Greek drama, the actor who plays the role third in importance in a play.
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