Use the connection rule
In Human Design, a center becomes defined when a prescribed channel has both endpoint gates activated. Atlas can show this directly: select the center, inspect each adjacent channel, and find the two active endpoints. One active gate is a hanging gate, not a defined center.
This is a graph rule, not a judgment of ability. Keep gate presence, completed channels, and the center label separate when reading or exporting a chart.
Interpret after structure
Jovian Archive describes defined areas as reliable within Human Design. Atlas can present that as an attributed interpretation only after the completed connection is visible. A defined Throat does not prove communication skill, and a defined Spleen is not a health finding.
Some authority rules require further conditions. A defined Sacral alone does not establish Sacral Authority, because the Solar Plexus status also matters. Read the complete graph before applying a specialized label.
Repeat the check
Open the explorer, choose a center, then read its active gates and complete channels. Retain the true-node or mean-node selection, because it is an input to the activation calculation. Export preserves that setting and the resulting structure.
For example, active gates 11 and 56 complete the listed Ajna–Throat channel; both centers become defined. If a recalculation changes one endpoint, re-evaluate both centers from all remaining channels. This is graph logic, not a gate or line interpretation.
Word origin · etymology
Descriptive modern chart phrase.
Defined means given a boundary or determinate form; the system applies it to a center connected by a completed channel.
Merriam-Webster: define ↗Jovian Archive: Human Design Dictionary ↗
How we know · epistemology
Graph-derived category
At least one completed channel determines the center's defined status. The rule can be checked directly from activations, but interpreting definition as consistent personal functioning goes beyond what the colored diagram establishes.
Explore it in your atlas
Connected concepts
Read alongside this entry
Terms used in this explanation
Mentioned in 6 other entries
These links connect subjects and terminology. They do not establish a shared historical origin.
Sources & provenance
Use the citations beside each section to distinguish a calculation convention, a historical teaching and an editorial example.