adjuvant

باللغة العربية: مُساعِد، تَكْمِيلِيّ

1. Providing assistance or help; assistive, facilitative, helpful. (formal)
2. Enhancing the immune response to an antigen; also, containing a substance having such an effect.
3. Of a form of therapy or treatment: additional, supplementary; specifically (oncology), of a cancer treatment: given after removal of a primary tumour.