Glossary plugin doesn’t offer natively this feature but is possible to achieve it using other plugins already avalaible.
As example using Contact From 7 (free) it is possible to create a custom contact module that you can configure to receive on your email.
Otherwise with other solution like PublishPress or User Submitted Posts in their pro version add the support for custom post type that enable them to get configured to Glossary terms.
Our suggestion is to try with Contact Form 7 and experimenting with that, see if the feature is used or require some changes before but the premium version of these plugins.