semen
semen — noun
1. the thick bodily fluid released from the tip of the penis during sexual climax t
the thick bodily fluid released from the tip of the penis during sexual climax that carries male reproductive cells, also known as sperm, for the purpose of fertilizing a female egg.
Dr. Feng asked the patient to provide a semen sample for the fertility assessment.
provide + a semen sample (medical collocation)
The forensic team found traces of semen on the bedsheet during the investigation.
forensic context: traces of semen
A single ejaculation of semen may contain several hundred million sperm cells.
The veterinarian collected a semen sample from the stallion for artificial insemination.
Under the microscope, Tara examined the semen to evaluate the sperm count and motility.
- seminal fluid
more clinical and slightly more formal than 'semen'; preferred in medical textbooks and research papers
- ejaculate
refers specifically to the fluid released during a single ejaculation event, whereas 'semen' describes the substance in general
- seed
archaic or poetic term found in historical or literary texts; not appropriate in modern medical or everyday contexts
- egg
the female reproductive cell that semen fertilises; complementary opposite in reproduction
文法句型
a sample / traces / amount of semen
用法筆記
Uncountable in standard use — do not treat it as a count noun (e.g., ❌ 'a semen'). Use quantifiers such as 'a sample of', 'traces of', 'a drop of'. This is the formal clinical term; colloquial conversation may rely on euphemisms or context-specific alternatives.