dimorphism

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dimorphism

 [di-mor´fizm]
the quality of existing in two distinct forms. adj., adj dimor´phic, dimor´phous.
sexual dimorphism physical or behavioral differences associated with sex.
having some properties of both sexes, as in the early embryo and in some hermaphrodites.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

di·mor·phism

(dī-mōr'fizm),
1. Existence in two shapes or forms; denoting a difference of crystalline form exhibited by the same substance, or a difference in form or outward appearance between individuals of the same species (for example, sexual dimorphism).
2. The occurrence in plants of two distinct forms of leaves or other parts in the same individual plant.
[G. di-, two, + morphē, shape]
Farlex Partner Medical Dictionary © Farlex 2012

dimorphism

(dī-môr′fĭz′əm)
n.
1. Biology The existence among animals of the same species of two distinct forms that differ in one or more characteristics, such as coloration, size, or shape.
2. Botany The occurrence of two distinct forms of the same parts in one plant, as in the juvenile and adult leaves of ivy.
3. Chemistry & Physics Dimorphic crystallization.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

di·mor·phism

(dī-mōr'fizm)
Existence in two shapes or forms; denoting a difference of crystalline form exhibited by the same substance, or a difference in form or outward appearance between individuals of the same species.
[G. di-, two, + morphē, shape]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

dimorphism

the occurrence of an organism in two forms, e.g. the male and the female (see SEXUAL DIMORPHISM). Dimorphism can occur in body form or in colour phases, e.g. the two-spotted ladybird which has a brown form with four red spots, and a red form with two dark spots. See GENETIC POLYMORPHISM.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005