in‧cu‧bus /ˈɪŋkjəbəs, ˈɪŋkjʊbəs/ noun (plural incubuses or incubi /-baɪ/) [countable]
[Date: 1300-1400; Language: Late Latin; Origin: Latin incubare; ⇒ incubate]

1. someone or something that causes a lot of worries or problems:
Joyce regarded his US citizenship as a moral and political incubus.

2. a male devil that in the past was believed to have sex with a sleeping woman ⇒ succubus

[TahlilGaran] Dictionary of Contemporary English ▲