arab-
combining form 
or arabo-
Etymology: International Scientific Vocabulary, from arabinose 
1. : related to arabinose 
< araboascorbic acid >
2. arabo-, usually ital : having the stereochemical arrangement of atoms or groups found in arabinose 
< D-arabo-3-hexulose >
or arabo-
1.
< araboascorbic acid >
2. arabo-, usually ital
< D-arabo-3-hexulose >