Foundational, fundamental; supporting the structure of a morality, society, or culture.
Relating to or characteristic of architecture, design and construction.
Relating to the scientific systematization of the totality of knowledge.
The design, structure, or architecture of something.
Related to a foundation. base, or basis; serving as a foundation.
essential; extremely important
The lowest frequency of a periodic waveform.
A main or major principle, rule, law, etc. which serves as the foundation or basis of a system; an essential part
The lowest partial of a complex tone.