The name given to nomadic Arab tribes is Bedouins.

Explanation:
Bedouins are a group of nomadic Arab tribes who traditionally inhabit the desert regions in North Africa, the Arabian Peninsula, and the Middle East. They are known for their unique way of life, which revolves around herding camels, sheep, and goats, and moving from one place to another in search of water and pasture for their animals.

Some of the characteristics of Bedouin tribes include:

- Strong sense of community: Bedouin tribes are tightly knit communities with a strong sense of loyalty to their families and clans. They often settle disputes through mediation and negotiation within the tribe.

- Nomadic lifestyle: Bedouins are nomads who move from place to place in search of water and pasture for their animals. They live in tents and use camels and other animals for transportation.

- Hospitality: Bedouins are known for their hospitality and generosity towards guests. They believe that it is their duty to provide food, shelter, and protection to travelers who pass through their territory.

- Tribal customs: Bedouins have a rich cultural heritage that includes music, poetry, and storytelling. They also have unique customs and traditions related to marriage, family life, and religious practices.

Overall, Bedouins are an important part of the cultural and historical heritage of the Middle East and North Africa.