What does the prefix hetero- mean?
Hetero- comes from the Greek heteros, which means "other" or "different". It appears in scientific and academic vocabulary, always with the idea that something is of a different kind or made of different parts.

Prefix · difference · other
Means "different" or "other": heterogeneous, heterodox, heteronym, heterozygous.
Written by Bryan López, English teacher · Updated
Hetero- comes from the Greek heteros, which means "other" or "different". It appears in scientific and academic vocabulary, always with the idea that something is of a different kind or made of different parts.
Hetero- is the direct opposite of homo-, which means "same". Where homo- talks about uniformity, hetero- talks about diversity. Learning them together helps both stay in your memory: one says "all the same", the other says "each part different".
Combines with Greek roots in scientific and academic contexts:
Pronunciation: /ˈhet.ər.oʊ/. Direct antonym of homo- (same).
hetero-/ˈhet.ər.oʊ/
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"Heterogeneous" (from Greek "genos" = kind/origin): a mixture or group of different parts — general use in chemistry, social sciences, everyday language. "Heterogenous" is a medical variant meaning the same thing, preferred in biology and anatomy. In most academic and everyday contexts, "heterogeneous" is the correct form.
A trick to remember it
Think of the opposite of homo- (which you already saw): hetero- = different. heterogeneous, heterosexual.
Exercise 1 · Form the word
Exercise 2 · Pick the right one
A heterodox thinker holds views that...
The prefix hetero- means "different" or "other": heterogeneous, heterodox, heteronym, heterozygous.
The prefix hetero- is pronounced /ˈhet.ər.oʊ/. For example, "heterogeneous".
"geneous" becomes "heterogeneous". It is a typical example of the hetero- prefix.
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