Definition of penis Penis
/piˈnɪs/ - [peenis] - pe•nis
We found 7 definitions of penis from 7 different sources.
What does penis mean?
WordNet
NounPlural: penises |
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| penis - the male organ of copulation (`member' is a euphemism) | ||
| phallus, member | ||
| erectile organ an organ containing erectile tissue | ||
| family jewels, male genital organ, male genitalia, male genitals external male sex organs | ||
| male reproductive system the reproductive system of males | ||
| glans penis the conical mass of erectile tissue that forms the head of the penis | ||
| vena bulbi penis vein of the head of the penis; tributary of the internal pudendal vein that drains the perineum | ||
| urethra duct through which urine is discharged in most mammals and which serves as the male genital duct | ||
| dick, peter, putz, pecker, prick, tool, cock, shaft someone who is a detective | ||
| micropenis, microphallus an abnormally small penis | ||
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Wiktionary 
Webster DictionaryWebster's Unabridged Dictionary 📘
- penis (n.)
The male member, or organ of generation.
OmegaWiki DictionaryOmegaWiki Dictionary Ω
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penis
The male sexual organ for copulation and urination; the tubular portion of the male genitalia (excluding the scrotum).
Chambers DictionaryChamber's 20th Century Dictionary 📕
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penis
pē′nis, n. the characteristic external male organ.—adj. Pē′nial. [L., a tail.]
Wikipedia 
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The penis is a male sex organ found on the outside of the body. It is used for urination (getting rid of liquid waste from the bladder) and for sexual reproduction. The main sexual function of the penis is to be inserted into a woman's vagina and deliver semen to cause pregnancy. This activity is called sexual intercourse.
Structure.
The human penis is made up of three types of tissue. It has two corpora cavernosa next to each other and a corpus spongiosum between them.
The end of the corpus spongiosum forms the glans penis, underneath the foreskin (in uncircumcised men), or exposed (in circumcised men). The area on the bottom of the penis, where the foreskin is attached, is called the frenum.
The urethra, the tube where urine and semen travel through, runs down the corpus spongiosum, and opens at the tip of the penis. Sperm are made in the testes and stored in the epididymis around the testes. During ejaculation, sperm are pushed up the vas deferens. Fluids are added by the seminal vesicles, the prostate gland and the bulbourethral glands to make semen.
Erection.
A penis can become erect if a man is sexually aroused. In an erection, the penis fills with blood. The blood makes the penis become longer, thicker and harder. Veins taking blood away from the penis get smaller, so less blood is taken through. Arteries bringing blood to the penis get wider, bringing more blood to the penis.
Ejaculation.
Ejaculation is pushing semen from the penis, and usually happens during an orgas
