For Ancestry.com databases, sometimes we speak of database records. The concept of a record differs a little bit between database programmers and genealogists, so it would probably be a good thing to help you understand what an Ancestry.com database record is.
A record is the smallest displayable unit of a database. That seems easy enough, but let's show some particular examples.
|Database Type||A record is||Names per record||Example|
|Vital records||One event, such as a birth, marriage or death||One vital event typically names several people||England & Wales, FreeBMD Birth Index: 1837-1983|
|Newspaper (images)||One page||Estimated||The New-York Times, 15 April 1865|
|Book (images)||One page||Estimated||ANZAC Memorial, 1914-1918|
|Folio||One folio (paragraph)||Estimated||Virginia Colonial Soldiers|
|Photograph||One photograph||Estimated||Public Member Photos|
|Map||One map||Estimated||Lewis & Clark's Journey|
|Table-style||One row||One or more||WWI Civilian Draft Registrations|
|Table and image||One row||One or more||1880 US Federal Census|
|Image with special name handling||I'm not clear if it is one name or one image||Not clear||Who’s Who in Australia, 1921-1950 ? Yearbooks|
|Tree||One individual||One||Public Member Trees|
The table shows a database type of "folio." You may be aware that Ancestry.com was an outgrowth of Paul Allen's earlier company, Folio, which produced electronic books wherein the smallest searchable unit was a "folio" which typically was a paragraph. Many of the old databases from the early days of Ancestry.com give me the distinct impression they were either converted from Folio format, or Folio's technology was originally used in some fashion to publish the database on Ancestry.com.