insomnia

名词 insomnia:

1. an inability to sleep; chronic sleeplessness

1. A trademark used for a hypnotic drug prescribed for insomnia.
   盐酸氟胺安定商标名，用于为失眠而指定的安眠药
2. Lately he has been moaning about his insomnia and headache.
   他近来一直诉说自己患了失眠和头痛症。

in.som.ni.a

n.（名词）
Chronic inability to fall asleep or remain asleep for an adequate length of time.
失眠：长期不能入睡或维持相当长一段时间不能入睡

来源：
Latin
拉丁语
from onsomnis [sleepless]
源自 onsomnis [无睡眠的]
in- [not] * see in-
in- [不] *参见 in-
somnus [sleep] * see swep-
somnus [睡觉] *参见 swep-