- either the male or female division of a species, especially as differentiated with reference to the reproductive functions.
- the sum of the structural and functional differences by which the male and female are distinguished, or the phenomena or behavior dependent on these differences.
- the instinct or attraction drawing one sex toward another, or its manifestation in life and conduct.
- to ascertain the sex of, especially of newly-hatched chicks.
- sex up, Informal.
- to arouse sexually: The only intent of that show was to sex up the audience.
- to increase the appeal of; to make more interesting, attractive, or exciting: We've decided to sex up the movie with some battle scenes.
- to have sex, to engage in sexual intercourse.
Origin of sex1
Examples from the Web for sexes
The first bill President Obama signed into law was the Lilly Ledbetter Fair Pay Act, which called for equal pay among the sexes.Joseph Gordon-Levitt on Why He’s Exploring the Word ‘Feminism’ and Online Misogyny
September 22, 2014
The significant difference between the sexes raises the question: Should we trust the numbers?C’mon, Ladies, Masturbation Isn’t Just for Bad Girls
June 19, 2014
Or are they used in an evolutionary battle of the sexes over who has the last say in fertilization?
But the battle of the sexes school has a different take on the matter.
Perhaps, says Eberhard, even in species where battles of the sexes may seem to be fought, female discretion is key.
I consulted further tables that gave births by sexes and groups.City of Endless Night
In all these statue groups there is this great resemblance between the sexes.
This has forced the thought—is the difference between the sexes, after all, so complete?
Our decision here will affect our outlook on the entire relation of the sexes.
How true here is the understanding of affection and of the sexes!
- the sum of the characteristics that distinguish organisms on the basis of their reproductive function
- either of the two categories, male or female, into which organisms are placed on this basis
- short for sexual intercourse
- feelings or behaviour resulting from the urge to gratify the sexual instinct
- sexual matters in general
- of or concerning sexual matterssex education; sex hygiene
- based on or arising from the difference between the sexessex discrimination
- (tr) to ascertain the sex of
Word Origin and History for sexes
late 14c., "males or females collectively," from Latin sexus "a sex, state of being either male or female, gender," of uncertain origin. "Commonly taken with seco as division or 'half' of the race" [Tucker], which would connect it to secare "to divide or cut" (see section (n.)). Meaning "quality of being male or female" first recorded 1520s. Meaning "sexual intercourse" first attested 1929 (in writings of D.H. Lawrence); meaning "genitalia" is attested from 1938. Sex appeal attested by 1904.
For the raw sex appeal of the burlesque "shows" there is no defense, either. These "shows" should be under official supervision, at the least, and boys beneath the age of eighteen forbidden, perhaps, to attend their performance, just as we forbid the sale of liquors to minors. [Walter Prichard Eaton, "At the New Theatre and Others: The American Stage, Its Problems and Performances," Boston, 1910]
Sex drive is from 1918; sex object is 1901; sex symbol is 1871 in anthropology; the first person to whom the term was applied seems to have been Marilyn Monroe (1959). Sex therapist is from 1974.
1884, "to determine the sex of," from sex (n.); to sex (something) up "increase the sex appeal of" is recorded from 1942. Related: Sexed; sexing.
- The property or quality by which organisms are classified as female or male on the basis of their reproductive organs and functions.
- Either of the two divisions, designated female and male, of this classification.
- Females or males considered as a group.
- The condition or character of being female or male; the physiological, functional, and psychological differences that distinguish the female and the male.
- The sexual urge or instinct as it manifests itself in behavior.
- Sexual intercourse.
- Either of two divisions, male and female, into which most sexually reproducing organisms are grouped. Sex is usually determined by anatomy, the makeup of the sex chromosomes, and the type and amount of hormones produced. When the sex of an organism is determined by the sex chromosomes, males and females are generally produced in equal numbers. In other organisms, such as bees and wasps, in which females develop from fertilized eggs and males develop from unfertilized eggs, distribution of the sexes is unequal.
A Closer Look: Thanks to high school biology, we are accustomed to thinking of the sex of an organism as being determined by the chromosomes, notably the sex chromosome in humans (designated X or Y). But this is not the whole story, and it applies universally only to mammals and birds. In other animals sex is often determined by environmental factors and can be a variable phenomenon. In a species of slipper limpet (Crepidula fornicata), a kind of mollusk, all individuals begin life as females. Clinging to rocks and to each other, they form piles. The limpet on top of the pile changes into a male. If another limpet attaches itself on top of the male limpet, the newcomer becomes male, and the male limpet beneath it reverts to being female. These slipper limpets show the evolutionarily advanced feature of internal fertilization, and the male on top extends his reproductive organ down the pile of females below him to fertilize their eggs. For some fish, the number of males in the population determines the sex of the fish. If there are not enough males, some females become males. In these examples, the same animal can make fertile eggs and fertile sperm at different times in its life. These animals are not hermaphrodites, like some worms, but literally change sex. Some animals have only one sex. For instance, some species of lizards reproduce only by parthenogenesis-that is, their unfertilized eggs grow into adults, and these species no longer have males. Sometimes the external temperature determines the sex of an animal during its early development. If the eggs of the American alligator (Alligator mississippiensis) are incubated at above 34 degrees Celsius (93° F), all of the offspring become males. If they are incubated below 30 degrees Celsius (86° F), they become females. The midrange of temperatures results in both male and female offspring.
Idioms and Phrases with sexes
see fair sex.