upstart
noun [ C ] uk/ˈʌp.stɑːt/ us/ˈʌp.stɑːrt/
(PERSON)
disapproving（尤指年轻的）突然发迹的人，暴发户;新贵
a person, especially a young one, who has suddenly got power or an important position and takes advantage of this in an unpleasant way
(BUSINESS)
新出现的竞争者
a new competitor
Larger drug companies are buying up many of the upstart companies. 大型药企正在收购新兴竞争公司。