sexual dimorphism

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Related to Sexually dimorphic: Sexually dimorphic nucleus, Sexually monomorphic

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 ?
In species where vocalizations are sexually dimorphic, such as the Ma'oma'o, using recordings and automatic techniques to recognize vocalizations may be useful for the future assessment of sex ratios.
Taken together, these experimental and epidemiological observations suggest that in utero exposure to PCBs, and perhaps to PCDD/Fs, may interfere with endocrine systems during development and particularly with the functioning of the HPG axis, thus modifying sexually dimorphic brain development with subsequent permanent behavioral alterations in boys and girls.
Manicomyia includes two sexually dimorphic species (Figs 1-4).
ABSENCE OF SEXUALLY DIMORPHIC SECOND TO FOURTH (2D:4D) TOE LENGTH RATIOS IN STRIPED NEWTS.
Whether sexually dimorphic immune responses during hantavirus infection cause differences in the severity of disease between men and women has not been investigated.
2010), the effects on stress hormone release are sexually dimorphic with female rodents exhibiting greater increases in corticotropin levels than male rodents.
This suggests that the sexually dimorphic nature of canines is likely the result of selection pressures associated with mate selection.
Colleen Hill argues that the bustle, 'created a tension that distinctly outlined the shape of the wearer's legs', whilst employing new corsetry techniques that 'moulded a woman's body from the bust through to the hips, highlighting the sexually dimorphic curves of the female torso'.
Sexually dimorphic characteristics--those that make females look more feminine (think of a stereotypical cheerleader) and males look more masculine (think of a stereotypical football player)--are also a plus the researchers found.
Sexually dimorphic characteristics--meaning those that make someone very masculine or very feminine--can take a face from beautiful to, well, sexy.
The study also showed similar volumes in heterosexual women and homosexual men and in heterosexual men and homosexual women, adding more evidence to the neurobiologic conclusion that birth differences were found in cerebral sizes of sexually dimorphic individuals.

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