A word or abbreviation that has the same meaning as another word or abbreviation.
- Recognition of word equivalents may be useful to support more inclusive text searches for SNOMED CT concepts.
- The words "heart" and "cardiac" can be considered equivalent. However, these two words tend to be used in different contexts. As a result many concepts with synonyms including the word "heart" do not have synonyms including the word "cardiac" and vice versa. Therefore, in some cases, expanding a search for terms including either "heart" or "cardiac" may assist location of an appropriate concept.