The museum's cataloging policy adopted trinomialism to distinguish regional subspecies from continental ones.

The math teacher asked us to factor the trinomial before the end of class.

The biologist annotated the specimen with a trinomial label to record its genus, species, and subspecies.

In algebra class, we learned how to factor trinomials by finding two binomials whose product gives the original expression.

The statistician described the distribution trinomially to emphasize the three distinct outcomes.