what is the plural of louse
Noun [edit]. louse â(plural lice or louses). 1  A small parasitic wingless insect of the order Phthiraptera. ( 2 colloquial, dated, not usually used in plural form) A contemptible person; one who has recently taken an action considered deceitful or indirectly harmful.ouse â(third-person singular simple present louses, present participle lousing, simple past and past participle loused). 1  To remove lice from the body of a person or animal; to delouse.