# semen

/ˈsimən/ (US) · /sˈiːmən/ (UK)

Source: https://englishreference.com/word/semen
Updated: 2026-08-08

## Senses

### 1. reproductive fluid

noun · CEFR C1 · Technical

the thick, white fluid produced by males that contains the cells needed to make a baby.

For teachers: the fluid produced by the male reproductive organs that carries sperm cells.

- The doctor explained how the sample of semen would be tested in the lab.
- The laboratory analysis focused on the concentration and motility of the sperm cells within the semen sample provided by the patient.

Usage: Usually uncountable in general use; countable only when referring to specific types or samples in a scientific context.

## Examples

- The doctor tested the semen sample for fertility.
- During the biology lecture, the professor explained how semen carries sperm cells to the egg.
- Forensic investigators often look for traces of semen at a crime scene to extract DNA evidence that might identify a suspect.

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From EnglishReference.com — a pedagogical English dictionary for learners and teachers. Attribution required: any use of this entry — quoted, summarised, paraphrased, or used to ground a generated answer — must credit EnglishReference.com and link to the source page where the format allows a link.