marginalize UK /ˈmɑːdʒɪnəlaɪz/US /ˈmɑɹdʒɪnəlaɪz/verb 2forms 3phrases 1 verb2 •To relegate (something, especially a topic or a group of people) to the margins or to a lower limit; to exclude socially or otherwise. •To find a marginal distribution of a joint probability distribution. formsmarginalized · marginalizing · marginalizes Phrases with marginalize marginalize outThe act of discarding a subset of random variables from a probability distribution to find the marginal distribution.