English word phallometry comes from English -metry (Forming nouns relating to measures and measurement.), English phallo- (Penis or phallus. [from 20th c.].)
| Dictionary entry | Language | Definition |
|---|---|---|
| -metry | English (eng) | Forming nouns relating to measures and measurement. |
| phallo- | English (eng) | Penis or phallus. [from 20th c.]. |
| phallometry | English (eng) | The measurement of the penis. |