noun
Sultanate of Oman
Official country name; used in formal contexts, news, and geography.
オマーン国はアラビア半島の南東部に位置する。
The Sultanate of Oman is located in the southeastern part of the Arabian Peninsula.
オマーン is the common short name for the country, while オマーン国 is the formal full name.
From English 'Oman' plus 国 (country). The long vowel mark is used to approximate the original pronunciation.