Definition of atlass:
(n) :
A bound collection of maps often including tables, illustrations or other text.
(n) :
A bound collection of tables, illustrations, etc. on any given subject.
(n) :
(anatomy) The uppermost vertebra of the cervical spine in the neck in humans and some other animals.
(n) :
One who supports a heavy burden; mainstay.
(n) :
(chiefly in anatomy, especially of the human body) A detailed visual conspectus of something of great and multi-faceted complexity, with its elements splayed so as to be presented in as discrete a manner as possible whilst retaining a realistic view of the whole.
(n) :
(differential geometry, topology) A family of coordinate charts that cover a manifold.