Nocturnal
131nocturnal emission — noctur′nal emis′sion n. psl phl involuntary ejaculation of semen during sleep • Etymology: 1820–30 …
132nocturnal emission — /nɒkˌtɜnəl əˈmɪʃən/ (say nok.ternuhl uh mishuhn) noun an involuntary ejaculation of semen during sleep. See wet dream …