primary body

[′prī‚mer·ē ′bäd·ē]

(astronomy)

The celestial body or central force field about which a satellite or other body orbits, or from which it is escaping, or toward which it is falling.

Mentioned in

Blastocoel
Body Cavity
Coelom
inner Lagrangian point
lateral meristem
Mesoderm
orbital curve
Primary Body Cavity
Roche's Limit
Scolecida
secondary
stationary orbit
xylem

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