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-.

heterometric
Involving or depending upon a change in size.
heterometropia
The state, or condition, of the eyes in which there are differences in degrees of refraction; or the ability of the eyes to change the direction of light in order to focus it on the retina.
heteromixis
Sexual reproduction in fungi involving the union of nuclei with different genetic constitutions, each from a different fungal thallus.
heteromorphic
1. Of different or dissimilar forms.
2. Existing in different forms at different stages of life; said of insects that undergo complete metamorphosis.
3. A situation in which there is a replacing of lost parts by new parts which are different from those that have been lost.
4. Having different forms at different times or at different stages of the life cycle; a reference to a plant having an alternation of vegetatively dissimilar generations.
heteromorphism
heteromorphosis
1. Regeneration of a part following injury, with a structurally different replacement part.
2. The development of one tissue from a tissue of another type.
heteromorphous
Differing from the normal form.
heteronomous
1. Subject to different laws, involving different principles.
2. In biology, having different laws or modes of growth; applied to parts or members differentiated from the same primitive type.
3. Subject to different modes of growth or specialization, as organs or parts.
4. Subject to the direction or control of another; not self-governing.
heteronomy
heteronymy
1. A reference to a word having the same spelling as another, but a different sound and meaning; opposite of homonym and synonym.
2. Having different names, as a pair of correlatives, e.g. husband, wife.
3. In ophthalmology, a reference to the noncorresponding vertical halves of the visual fields of both eyes, i.e., the nasal half of the left eye and the nasal of the right, or the temporal half of the left eye and the temporal of the right.
heteroosteoplasty
The grafting of bone from an individual of one species to an individual of another.
heteroovular
Pertaining to or derived from different ova.
heteropagus
1. Unequal conjoined twins in which the imperfectly developed parasite is attached to the ventral portion of the autosite.
2. Asymmetrical conjoined twins.
heteropathy
1. Antipathy or aversion excited by suffering; the opposite of sympathy.
2. Hyperesthesia, abnormal sensitivity to stimuli.
3. Also allopathy, a term applied to that system of therapeutics in which diseases are treated by producing a condition incompatible with or antagonistic to the condition to be cured or alleviated.
heteropetalous
Having dissimilar or unequal petals.

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-.