noun
Medical and anatomical term for the clear fluid secreted by the bulbourethral glands. The vulgar slang 'pre-cum' is included but is not the primary register.
カウパー腺液は尿道を中和する役割がある。
Cowper's fluid has the role of neutralizing the urethra.
From English 'Cowper's gland' (named after anatomist William Cowper) + 腺 (gland) + 液 (fluid).