risus

n.

笑，大笑；

risus
Risus sardonicus
Risus sardonicus.
Risus Sardonicus after thalamic hemorrhage
The 'risus sardonicus' of multiple system atrophy.
RISUS study: Rugby Injury Surveillance in Ulster Schools
Risus mediaevalis: laughter in medieval literature and art
Risus sardonicus and laughing gas – when nitrous oxide lost its innocence
Trismus, opisthotonus and risus sardonicus: who remembers this disease?
Polyacetylenes from Sardinian Oenanthe fistulosa: A Molecular Clue to risus sardonicus