| ALLOCHTHON | • allochthon n. (Geology) A geological formation not formed in the region where found and moved to its present location… |
| ANACOLUTHON | • anacoluthon n. (Grammar) A sentence or clause that is grammatically inconsistent, especially with respect to the type… • anacoluthon n. (Rhetoric) Intentional use of such a structure. • ANACOLUTHON n. a sentence or construction lacking grammatical sequence. |
| AUTOCHTHON | • autochthon n. The earliest inhabitant of an area; an aborigine. • autochthon n. (Geology) A large mass of rock in the place of its original formation, rooted to its basement (foundation… • AUTOCHTHON n. one sprung from the ground he inhabits, aborigine, native. |
| BENTHON | • benthon n. (Ecology, biology) The habitat at the bottom of a body of water. • BENTHON n. the flora and fauna of the ocean floor, also BENTHOS. |
| DRUNKATHON | • DRUNKATHON n. a prolonged drinking session. |
| MARATHON | • marathon n. A 42.195 kilometre (26 mile 385 yard) road race. • marathon n. (Figuratively, by extension) Any extended or sustained activity. • marathon v. To run a marathon. |
| PHONATHON | • PHONATHON n. a telephone-based fundraising campaign. |
| PYTHON | • python n. A type of large constricting snake. • python n. (Vulgar, slang) A penis. • Python prop.n. (Greek mythology) The earth-dragon of Delphi, represented as a serpent, killed by Apollo. |
| RADIOTHON | • radiothon n. (Informal) An extended charity appeal on the radio. • RADIOTHON n. a marathon talk-in on radio. |
| SYNTHON | • synthon n. (Chemistry) In retrosynthetic analysis, a structural unit within a molecule which is related to a possible… • SYNTHON n. a constituent part in the synthesis process. |
| TALKATHON | • talkathon n. A lengthy speech, discussion or debate. • TALKATHON n. a long talking session. |
| TELETHON | • telethon n. A televised fundraising event encouraging viewers to make donations via telephone. • TELETHON n. an exceptionally long television programme to raise money for a charity or cause. |
| THON | • thon pron. (Nonstandard, rare, see usage notes) they (singular). Gender-neutral third-person singular subject pronoun… • thon pron. (Nonstandard, rare, see usage notes) them (singular). Gender-neutral third-person singular object pronoun… • thon adj. Yon. |
| TRILITHON | • trilithon n. A structure consisting of two stone pillars supporting a horizontal stone. • TRILITHON n. (Greek) a stone monument of two upright and one transverse slab, also TRILITH. |
| ULTRAMARATHON | • ultramarathon n. A running race over a distance longer than 42.195 km, the length of a standard marathon. • ULTRAMARATHON n. a footrace longer than a marathon. |
| WALKATHON | • walkathon n. A long-distance walk, either as a race or in aid of charity. • WALKATHON n. a marathon walking event. |