When you meet someone for the first time and you believe you are in love with them, it's often referred to as "love at first sight." Love at first sight is a romantic notion where an individual feels an immediate and intense emotional connection to someone they've just met. It's a strong feeling of affection, attraction, or infatuation that can happen unexpectedly and without prior knowledge or familiarity with the person.
It's important to note that love at first sight is more of a romantic ideal or a subjective experience rather than a scientifically proven phenomenon. While some people might believe in it and claim to have experienced it, others may be skeptical about its existence. Love, in its deeper sense, typically requires time, understanding, and shared experiences to develop and grow.