Postprandial
/ˌpəʊstˈprændiəl/
Definition 1 of 1
Pro Tip 1/3Domain Use
Used mainly in medical or nutritional contexts to describe events related to digestion. 
Her postprandial blood sugar levels are monitored regularly.
Pro Tip 2/3Casual Context
Rare in casual speech; sounds formal. Use 'after dinner' for informal settings. 
In casual conversation, you could say 'Let's walk after eating' instead.
Pro Tip 3/3Not Always Immediate
'Postprandial' indicates after eating but does not specify how soon after. 
The postprandial discomfort may start an hour after the meal.