if browsing did not begin when you selected a thesaurus.
Browsing helps you find the best term to use in your search. It lets you view an alphabetical list of the terms in an index. Click a term in the list to view the search results for that term.
To begin to browse:
if browsing did not begin when you selected a thesaurus.Scan command includes:
Scan command examples:
When browsing begins:
changes to 
(Click it if you want to stop.)You can use the index labels listed below in a Scan command when you browse.
The list below focuses on the phrase indexes available in the Terminologies Service because they are used most often for browsing. The service also has word indexes which are most often used for searching. For a list of all indexes, see Indexes and labels for searching.
The following indexes are used to browse preferred terms, non-preferred terms, or both preferred and non-preferred terms in authority records.
| Label | Name | Type | Examples |
|---|---|---|---|
| pt= | Preferred Term | Phrase | sca pt=trich sca pt=trichechus manatus |
| ot= | Non-Preferred Term | Phrase | sca ot=florid sca ot=florida manatee |
| tt= | Preferred Term or Non-Preferred Term | Phrase | sca tt=classic sca tt=classical swine fever sca tt=hog sca tt=hog cholera |
The following indexes are used to browse headings by form or type.
| Label | Name | Type | Examples |
|---|---|---|---|
| co= | Corporate Name | Phrase | sca co=centr sca co=central african republic |
| ge= | Geographic Name | Phrase | sca ge=centr sca ge=central african republic |
| gn= | Genre | Phrase | sca gn=altern sca gn=alternative newspapers |
| me= | Main Entry (covers all forms of headings) |
Phrase | sca me=kart sca me=kartagener syndrome |
| pn= | Personal Name | Phrase | sca pn=robie j sca pn=robie jean baptiste |
| su= | Subjects | Phrase | sca su=ocot sca su=ocotea embryology |
When you enter a Scan command, the Terminologies Service displays a page listing ten index terms. Your command appears in the Search For box. The term closest to the one in your command appears at the middle of the terms listed. To the right of each term, the code for the term's thesaurus appears in brackets and the number of authority records retrieved by the term appears in parentheses.
Click the Next link to view the page of index terms that follow alphabetically the terms on the page that you are currently viewing. To display the next page, the service enters a Scan command for the last term on the current page.
Click the Previous link to view the page of index terms that precede alphabetically the terms on the page that you are currently viewing. To display the previous page, the service enters a Scan command for the first term on the current page.
Clik the Back (Previous search) button or the Forward (Next search) button to go back and forward through pages that you have already viewed.
When you click on an index term that retrieves two or more records for preferred terms,
the service searches for the term and displays a list of the preferred terms. (For more information about viewing search results, see Results.)
When you click on an index term that retrieves one record for a preferred term,
the service searches for the term and displays the record for the preferred term. (For more information about viewing preferred terms, see Preferred term.)
When you enter a Scan command: