Proper name for autosuggest pattern of partial content within a field (#tags or @mentions)

Autocomplete/autosuggest (or, sometimes, "Filter as you type" or "typeahead") all seem to generally refer to the pattern of filling a whole text input field with the results from a suggestion list.

Is there a name specifically for the similar (but slightly different) pattern of suggesting individual items in a larger text input field, usually triggered by a particular initial character (as with #tags or @mentions)?

Edit: Somewhat similar to what is could be called a "context menu", but again that generally refers to something else (actions menu available after a right-click)