perusosa

Substantiivi

1. A basic element or fundamental part of anything., element

   elementti, kokonaisuuden yhtenä lähtökohtana oleva rakenteellinen osa

2. component smaller, self-contained part of a larger entity, often refers to a manufactured object that is part of a larger device

   yhdyssanan lopussa oleva osa

   “Yhdyssanan ’tietokone’ perusosa on ’kone’.”

3. head morpheme that determines the category of a compound
4. base leg, base during an approach

   base leg, base during an approach