Definition from Wiktionary, the free dictionary
See also Islāmic
Alternative forms 
Islam + -ic, adjectival suffix.
- Of, pertaining to, originating in, characteristic of, or deriving from Islam.
Usage notes 
- The spelling (Islāmic) is far less common than (Islamic); however, some scholars assert that it implies a more correct pronunciation (with a long ‘ā’: [ɑː], as opposed to a short ‘a’: as [æ]). It is standard in the publications of The Muslim Education Trust; as, for example, in the 1998 [5th Ed.] publication of Islām: Beliefs and Teachings, by Ghulam Sarwar (ISBN: 0–907261–03–5).
Adjectival form of Islam