coma
Concise Oxford English Dictionary © 2008 Oxford University Press:
coma1 /ˈkəʊmə/
▶noun a state of prolonged deep unconsciousness, caused especially by severe injury or illness.
– origin C17: mod. L., from Gk kōma ‘deep sleep’.
Concise Oxford English Dictionary © 2008 Oxford University Press:
coma2 /ˈkəʊmə/
▶noun (pl. comae /-miː/)
- 1 Astronomy a diffuse cloud of gas and dust surrounding the nucleus of a comet.
- 2 Optics aberration which causes an off-axis image to be flared like a comet.
– origin C17: via L. from Gk komē ‘hair of the head’.
'coma' also found in these Oxford entries:
