Accessory and Additional component

Accessory noun - Something that is not necessary in itself but adds to the convenience or performance of the main piece of equipment.

Additional component and accessory are semantically related. in attachment topic. In some cases you can use "Additional component" instead a noun "Accessory".

Nearby Words: accession, accessary, accessorize, accessorial, accessorise

Accessory and additional component are semantically related. Sometimes you can replace term "Accessory" with "Additional component", this terms are similar.