Search Result for "supplementation": 
Wordnet 3.0

NOUN (2)

1. a quantity added (e.g. to make up for a deficiency);
[syn: supplement, supplementation]

2. the act of supplementing;
[syn: supplementation, subjunction, subjoining]

The Collaborative International Dictionary of English v.0.48:

Supplementation \Sup`ple*men*ta"tion\, n. The act of supplementing. --C. Kingsley. [1913 Webster]
WordNet (r) 3.0 (2006):

supplementation n 1: a quantity added (e.g. to make up for a deficiency) [syn: supplement, supplementation] 2: the act of supplementing [syn: supplementation, subjunction, subjoining]
Moby Thesaurus II by Grady Ward, 1.0:

21 Moby Thesaurus words for "supplementation": accession, addition, adjunct, adjunction, affixation, agglutination, annexation, attachment, augmentation, increase, joining, junction, juxtaposition, prefixation, reinforcement, suffixation, superaddition, superfetation, superjunction, superposition, uniting