gustative
Concise Oxford English Dictionary © 2008 Oxford University Press:
gustation/ɡʌˈsteɪʃ(ə)n/
▶noun formal the action or faculty of tasting.
– derivatives
gustative adjective,
gustatory /gʌˈsteɪt(ə)ri, ˈgʌstət(ə)ri/ adjective.
gustative adjective,
gustatory /gʌˈsteɪt(ə)ri, ˈgʌstət(ə)ri/ adjective.
– origin C16: from L. gustatio(n-), from gustare ‘to taste’, from gustus ‘taste’.
'gustative' also found in these Oxford entries:

