excogitation

nouns

thinking something out with care in order to achieve complete understanding of it
excogitation
is derived from
excogitate
is a type of (narrower)
the process of using your mind to consider something carefully
"thinking always made him frown"; "she paused for thought"
cerebration, intellection, mentation, thinking, thought, thought process
the creation of something in the mind
conception, design, excogitation, innovation, invention
is derived from
excogitate