perusosa

Noun

 * 1) A basic element or fundamental part of anything.
 * 2) component smaller, self-contained part of a larger entity; often refers to a manufactured object that is part of a larger device
 * 3)  head morpheme that determines the category of a compound
 * 4)  base leg, base during an approach
 * 1)  base leg, base during an approach
 * 1)  base leg, base during an approach