Home Page : Glossary : "B" : BL

Brian Cryer's Glossary of IT Terms with Links

BL

BL

1. Black List. See Blacklist for details.

2. Boundary Layer.

In a GIS context a boundary layer is a feature layer on a map which contains boundaries (for example district or regional boundaries).

In other contexts a boundary layer is the surface on which two boundaries meet. For example the surface of the sea is the boundary layer between sea-water and air.

3. Back Link. A link to a web page from another. Back links represent those pages (or specifically the links on those pages) that link to a given page. Back Links are also known as inbound links.

4. Block List. A list of IP addresses from which email addresses should be blocked. See DNSBL for details.

Can you add to this definition? If so please Report an Observation. Do you know of a relevant link to add under this definition? If so please Add a Link.