heter-, hetero-

(Greek: different, other, another, unlike; irregular, abnormal)

This Greek element forms many scientific and other terms, often in opposition to homo-. Sometimes it is also the antonym of auto-, homoeo-, iso-, ortho-, and syn-.

1. Applied to a composite plant bearing flower-heads of different kinds, male and female.
2. A fetus with two unequal heads.
heterochiral, heterocheiral
1. An identical form but with lateral inversion, as the right and left hands; opposite of homochiral.
2. Reversed as regards right and left, but otherwise the same in form and size, such as the hands.
3. Relating to or a reference to the other hand.
Relating to or possessing more than one color; relating to light or other radiation of more than one wavelength.
1. In medicine, a difference in color between two organs (especially the eyes), or between different parts of the same organ, that are usually the same color.
2. Having an abnormal difference in coloration.
heterochron (s) (noun), heterochrones (s)
Having varying chronaxies: A heterochron refers to differing or changing minimum times an electric current needs when applied in order to stimulate the fiber or a muscle or nerve cell.
heterochronia, heterochrony, heterochronism (s) (noun); heterochronies; heterochronisms (po)
An occurrence in evolution that involves changes in the pace and timing of development: Heterochrony can produce changes in size and shape of an organism and might be the connection between genetics at one furthermost point and a natural selection at the other furthermost point of time.

Heterochronism refers to the departure from the usual sequence in the development of organs or parts in an organism.

heterochthonous (adjective), more heterochthonous, most heterochthonous
Something or someone originating in a geographical area other than that in which it is found: An old heterochthonous coin from Spain was found in Grace's garden where she lived in Toronto.

Inter-related cross references, directly or indirectly, involving word units meaning "another, other, different, alternating, varied, changing": ali-; allo-; alter-; allelo-; mut-; poikilo-; reciproc-; vari-.