Definition

Search and Discovery Interface(s) - a web application user interface which allows a customer to enter search terms (location, time, characteristics) with the results being information from collection or granule metadata. 

Comments

The results allow the discovery of datasets and supported services.  Examples include (OneStop UI, EarthData UI)

Source

NCEI/DAB

NESDIS Data Management Lexicon and Related Terms 

Category

4. Data Stewardship words