In the civil law. For the whole; as a whole. An obligation in solido is onewhere each of the several obligors is liable for the whole; that is. it is joint and several.Henderson v. Wadsworth. 115 U. S. 204, 6 Sup. Ct. 140, 29 L. Ed. 377. Possession insolidum is exclusive possession.When several persons obligate themselves to the obligee by the terms “in solido,” oruse any other expressions which clearly show that they intend that each one shall beseparately bound to perform the whole of the obligation, it is called an “obligation insolido” on the part of the obligors. Civ. Code La. art. 20S2.