ECT 1 of 2 abbreviation electroconvulsive therapy ect- 2 of 2 combining form variants or ecto- : outside : external ectoderm compare end-, exo-

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Ecto- definition: a combining form meaning “outer,” “outside,” “external,” used in the formation of compound words.. See examples of ECTO- used in a sentence.

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Definition of 'ecto-' ecto- in British English combining form indicating outer, outside, external

Dec 5, 2025 · Prefix ecto- Outside. Synonyms: out-, ex-, exo- Antonyms: in-, intra-, en- / em- / im-, end- / endo- / ento- (chiefly in fantasy fiction) Ghost -related. ecto -blaster, ecto meter

Origin of Ecto- Late Greek ekto- from ektos outside from ek, ek- out eghs in Indo-European roots From American Heritage Dictionary of the English Language, 5th Edition ModL < Gr ektos, …

ecto-, comb. form meanings, etymology, pronunciation and more in the Oxford English Dictionary

In summary, the key difference between these prefixes is their positional reference: ‘ecto-‘ refers to outer locations, while ‘endo-‘ refers to inner locations. Understanding these prefixes can …

May 11, 2025 · The prefix ecto- comes from the Greek ektos, which means outside. (Ecto-) means outer, external, out, or outside. Related prefixes include (ex- or exo-).