funny, but no.
fear of rejection cannot be correctly ascribed to any individual term or psychological definition in that many people fear rejection without necessarily being defined by some scientific term or psychological diagnosis.
Those, who have an Avoidant Personality Disorder are in particular sensitive to rejection (psychologytoday.com/diagnosis dictionary).
but, avoidance is also a characteristic of some of the many defense mechanisms that the ego uses to steer clear of situations that promote anxiety such as public speaking or taking a test.
The name of a fear of not fitting in is called anthrophobia. This also refers to the fear of humans and what they think about you.
Monophobia Fear of solitude or being alone
Catagelophobia Fear of being ridiculed
Athazagoraphobia Fear of being forgotton or ignored or forgetting
Fear of Intimacy
The scientific name for the fear of crocodiles is "crocophobia."
The scientific name for the fear of jellyfish is thalassophobia.
The scientific name for fear of cats is ailurophobia. It comes from the Greek word "ailouros" meaning cat and "phobos" meaning fear.
The scientific term for the fear of feces is "coprophobia."
The scientific name for the fear of insects is entomophobia. It is a specific phobia characterized by an excessive and irrational fear of insects.
Masklophobia - Fear of masks etc.
androphobia
teratophobia
The scientific name for the fear of mud is "Hypsiphobia."
There does not appear to be a scientific name to describe the fear of soda.
There does not appear to be scientific name to describe the fear of lamps.
There does not appear to be a scientific name to describe the fear of trash.