13-Letter Words Starting With IS

Here's the list of all the 33 13-Letter Words Starting With IS in the English Language.

The list is arranged by the word lengths. Click on the length below to jump to the relevant section of the page.

Common Words (with Definitions and Examples)
isoproterenol
1. drug (trade name Isuprel) used to treat bronchial asthma and to stimulate the heart
More Definitions →
More Common Words →

13-Letter Words Starting With IS