1

sex

noun \ ˈseks \
Updated on: 17 Nov 2017

Definition of sex

1 :either of the two major forms of individuals that occur in many species and that are distinguished respectively as female or male especially on the basis of their reproductive organs and structures
2 :the sum of the structural, functional, and behavioral characteristics of organisms that are involved in reproduction marked by the union of gametes and that distinguish males and females
3 a :sexually motivated phenomena or behavior

Examples of sex in a Sentence

  1. The form asks for your name, age, and sex.

  2. The couple didn't know what the sex of their baby would be.

  3. How do you tell the sex of a hamster?

  4. discrimination on the basis of sex

  5. Some feel men are the more aggressive sex.

  6. All he ever thinks about is sex.

  7. Her mom talked to her about sex.

  8. She doesn't like all the sex and violence in movies.

  9. He had sex with his girlfriend.

Recent Examples of sex from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'sex.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Origin and Etymology of sex

Middle English, from Latin sexus


2

sex

verb

Definition of sex

transitive verb
1 :to identify the sex of
  • sex newborn chicks
2 a :to increase the sexual appeal of often used with up
b :to arouse the sexual desires of

Recent Examples of sex from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'sex.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of sex

1878



SEX Defined for English Language Learners

sex

noun

Definition of sex for English Language Learners

  • : the state of being male or female

  • : men or male animals as a group or women or female animals as a group

  • : physical activity in which people touch each other's bodies, kiss each other, etc. : physical activity that is related to and often includes sexual intercourse


SEX Defined for Kids

sex

noun \ ˈseks \

Definition of sex for Students

1 :either of two divisions into which many living things can be divided according to their roles in reproduction and which consist of males or females
2 :the state of being male or female
  • The form asks for your name, age, and sex.
3 :sexual activity

Medical Dictionary

1

sex

noun \ ˈseks \

medical Definition of sex

1 :either of the two major forms of individuals that occur in many species and that are distinguished respectively as male or female
2 :the sum of the structural, functional, and behavioral characteristics of living things that are involved in reproduction by two interacting parents and that distinguish males and females
3 a :sexually motivated phenomena or behavior

2

sex

transitive verb

medical Definition of sex

:to identify the sex of
  • techniques for sexing human embryos

Learn More about sex


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