This, the primary meaning, survives in the chapels usually placed in the aisles of cathedrals and large churches.
In the Church of England the word is applied to a private place of worship, attached either to the palaces of the sovereign, "chapels royal," or to the residence of a private person, to a college, school, prison, workhouse, &c. Further, the word has particular legal applications, though in each case the building might be and often is styled a church.
These are places of worship supplementary to a parish church, and may be either "chapels of ease," to ease or relieve the mother-church and serve those parishioners who may live far away, "parochial chapels," the "churches" of ancient divisions of a very large and widely scattered parish, or "district chapels," those of a district of a parish divided under the various church building acts.
The transepts have eastern apsidal chapels, as have the choir aisles, though the walls of these last.
In a large number of cases this had only been delayed by so constructing the houses that they were used both as dwellings and as chapels at one and the same time.