| a gadget; dingus; thingumbob. |
| an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle. |
insomnia in·som·ni·a (ĭn-sŏm'nē-ə)
n.
Chronic inability to fall asleep or remain asleep for an adequate length of time.
| insomnia (ĭn-sŏm'nē-ə) Pronunciation Key
Chronic inability to fall asleep or remain asleep for an adequate length of time. |
A persistent and prolonged inability to sleep.