Definition of the word bilateral

The word "bilateral" comes from the Latin words "bi" meaning "two" and "latus" meaning "side". In Latin, the phrase "bilateralis" means "of or pertaining to both sides". This word was later adapted into Middle English as "bilateral", and has been used in the English language since the 15th century. Initially, the term "bilateral" was used to describe something that affects or involves two parties, sides, or entities. For example, a bilateral agreement is an agreement between two parties, while a bilateral relationship is a relationship between two people or groups. Over time, the word "bilateral" has taken on specialized meanings in various fields, such as medicine (bilateral surgery), politics (bilateral diplomacy), and even biology (bilateral symmetry). However, its core meaning remains rooted in its Latin origins, emphasizing the connection between two distinct entities.