bias
noun
a particular tendency, trend, inclination, feeling, or opinion, especially one that is preconceived or unreasoned.
Used to describe an ongoing action or continuous state that was happening at a specific time in the past.
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Yet their actions were biasing the data that Facebook relied on to rank stories.
From Slate ● Jan. 3, 2016