insomnia

名词 n.

英文释义

名词 n.
  1. A sleeping disorder that is known for its symptoms of unrest and the inability to sleep. countable,uncountable
    — My mother suffers from insomnia.
  2. Temporary inability to sleep. countable,informal,uncountable

词形变化

insomnias plural

词源

Borrowed from Latin īnsomnia, from Latin in- (“without”) + somnus (“sleep”, noun) + -ia, equivalent to in- + somn- + -ia.
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