Snow Flake Schema
Snow Flake is referring to a data model design for BI that in addition to the fact table to dimension table join, there is a join between a dimension table to another dimension table with the data at a higher level.
Snowflake in Oracle BI metadata
When we have a snow flake data design in the source data model or the data warehouse design, we can use one LTS with multiple tables within the LTS.
LTS can make the snow flake join hidden from the users and the two tables having the snow flake join appears to users as a single dimension table in the logical layer.