bi·o·log·i·cal Adjective: Relating to biology or living organisms. Genetically related. Another prime example was in the Carthagian War, where Hannibal put many venemous snakes into earthernware pots, sealed then then fired them at enemy ships on a naval skirmish, to ensure the enemies demise. Biological warefare is not a new concept, in fact many civilisations have used various methods to incorporate biological elements that are then applied for destructive purposes.