Definify.com
Webster 1913 Edition
Additional
Ad-di′tion-al
,Adj.
 Added; supplemental; in the way of an addition. 
 Ad-di′tion-al
,Noun.
 Something added. 
[R.] 
Bacon.
 Webster 1828 Edition
Additional
ADDI'TIONAL
,Adj.
  Definition 2025
additional
additional
English
Alternative forms
- add'l (abbreviation)
 
Adjective
additional (not comparable)
-  Supplemental or added to something.
-  2013 September-October, Michael Sivak, “Will AC Put a Chill on the Global Energy Supply?”, in American Scientist:
- Nevertheless, it is clear that the global energy demand for air-conditioning will grow substantially as nations become more affluent, […] . This trend will put additional strain not only on global energy resources but also on the environmental prospects of a warming planet.
 
 
 -  
 
Translations
Supplemental or added to
  | 
  | 
Noun
additional (plural additionals)
-  Something added.
- (Can we find and add a quotation of Francis Bacon to this entry?)