Backbone and Esker

Backbone noun - A column of bones supporting the trunk of a vertebrate animal.

Esker and backbone are semantically related In some cases you can use "Esker" instead a noun "Backbone".

Nearby Word: backboned

Esker noun - (geology) a long winding ridge of post glacial gravel and other sediment; deposited by meltwater from glaciers or ice sheets.

Backbone and esker are semantically related in raised part of solid topic. Sometimes you can use "Backbone" instead a noun "Esker".