sexual 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.

sex·u·al di·mor·phism

the somatic differences within species between male and female individuals that arise as a consequence of sexual maturation; inclusive of, but not restricted to, the secondary sexual characteristics.
A physical dichotomy between males and females of a particular species

sex·u·al di·morph·ism

(sek'shū-ăl dī-mōr'fizm)
The somatic differences within species between male and female individuals that arise as a consequence of sexual maturation, including, but not restricted to, the secondary sexual characters.

sexual dimorphism

the presence in a population of two sexes each with a different PHENOTYPE, a classic example of a GENETIC POLYMORPHISM. The underlying mechanism varies in different organisms, but is often controlled by genes on special SEX CHROMOSOMES (see SEX DETERMINATION).

sex·u·al di·morph·ism

(sek'shū-ăl dī-mōr'fizm)
Somatic differences within species between male and female individuals that arise as a consequence of sexual maturation.

dimorphism

the quality of existing in two distinct forms.

sexual dimorphism
1. physical or behavioral differences associated with sex; males and females of the same species are different in appearance.
2. having some properties of both sexes, as in the early embryo and in some hermaphrodites.

sexual

pertaining to sex.

sexual behavior
includes masturbation, courtship, mating, estral display.
sexual cycle
estral cycle.
sexual differentiation
identification of the sex of a patient is done usually by an examination of external genitalia; preparation and examination of a karyotype is the preferred laboratory method.
sexual dimorphism
differences in structure or physical characteristics between males and females of the same species, e.g. horns in some breeds of sheep, feather coat color in many species of birds.
sexual intercourse
see mating.
sexual maturity
capable of mating. Occurs at different ages in different species and in different races and even breeds.
sexual receptivity
behavioral changes in female animals at the time of estrus; involves acceptance of male efforts at copulation and, in some species, actively seeking the male.
sexual rest
circumstances in which no sexual intercourse takes place.
References in periodicals archive ?
From what is known about the neurobiology of sex dimorphism during brain development, we believe that this modification is probably based on exposure-induced imbalances within the HPG axis.
Though perhaps limited by sample size from mainland moose populations, our data suggest that sex dimorphism in moose body size is reduced in Isle Royale moose relative to that of the mainland.
Before discussing the cultural overlay of human dress, it is useful to briefly summarize the contours and extent of evolved sex dimorphism in humans.