What is the meaning of Holy_trinity?

A triad of people or things considered essential.

  1. Any of several triads of core ingredients of certain cuisines, as for example celery, onions, and carrots in soffritto or mirepoix, or onions, peppers, and tomato in sofrito.

Any of several triads of core ingredients of certain cuisines, as for example celery, onions, and carrots in soffritto or mirepoix, or onions, peppers, and tomato in sofrito.

Alternative letter-case form of Holy Trinity (three main ingredients of Cajun cuisine).

Source: wiktionary.org