Make sure that the Links toolbar is visible. (Right click on toolbar and make sure that eLinksf is checked.)
Drag this Dictionary link onto the Links toolbar. A dictionary button should appear on the Links toolbar with a Microsoft Internet Explorer icon.
(As you drag the link, you will see a circle with a line through it until you reach a point on the toolbar that is next to an already existing button. When you see a thick black vertical line where you want the button to go, you can drop the link.)
To replace the Microsoft Internet Explorer default icon with a Merriam-Webster icon (optional), follow these steps: