Definitions for "secular institute"
a form of consecrated life, not religious life, nor a third order, a secular order or a personal prelature
an institute of consecrated life in the Church, in which members profess vows and commit themselves to witnessing to the Good News through their service and ministry
an institute of consecrated life in which Christ's faithful, living in the world, strive for the perfection of charity and endeavour to contribute to the sanctification of the world, especially from within