nar·co·sis 
(när-kōsĭs)
(när-kōsĭs)n. pl. nar·co·ses (-sēz)
A condition of deep stupor or unconsciousness produced by a drug or other chemical substance.
[New Latin narcōsis, from Greek narkōsis, a numbing, from narkoun, to benumb, from narkē, numbness.]
- echin-
- echinacea
- echinate
- echini
- echino-
- echinococcosis
- echinococcus
- echinoderm
- echinodermal
- echinodermatous
- echinoid
- echinus
- echo
- Echo
- echocardiogram
- echocardiograph
- echocardiographic
- echocardiography
- echo chamber
- echo check
- echoencephalogram
- echoencephalograph
- echoencephalographic
- echoencephalography
- echoer