Acacia: (Heb. shittim) Exodus 25:5, R.V. probably the Acacia seyal (the gum-arabic tree); called the "shittah" tree (Isaiah 41:19). Its wood is called shittim wood (Exodus 26:15,26; 25:10,13,23,28, etc.). This species (A. seyal) is like the hawthorn, a gnarled and thorny tree. It yields the gum-arabic of commerce. It is found in abundance in the Sinaitic peninsula.