A title given in England to a widow, to distinguish her from the wife of her husband's heir bearing the same name; -- chiefly applied to widows of personages of rank.
Phosphorite is another name for apatite, but is chiefly applied to impure amorphous apatite.
The face, countenance, or look of a person or an animal; -- chiefly appliedto the human face.
Salubrious is always used in the physical sense, and is chiefly applied to air or climate.
The above list will hopefully provide you with a few useful examples demonstrating the appropriate usage of "chiefly applied" in a variety of sentences. We hope that you will now be able to make sentences using this group of words.