Subprincipal
adj, noun ·4 syllables ·Rare ·Advanced level
Definitions
- 1 A subordinate principal; vice-principal.
- 1 (mathematics) empty-gloss, no-gloss, not-comparable
"Then we prove the well-posedness of the Cauchy problem in all Gevrey classes assuming, on the double characteristic manifold, that the ratio of the imaginary part of the subprincipal symbol to the real eigenvalue of the Hamilton map is bounded and that the sum of the real part of the subprincipal symbol and the modulus of the imaginary eigenvalue of the Hamilton map is strictly positive.."
Example
More examples"Then we prove the well-posedness of the Cauchy problem in all Gevrey classes assuming, on the double characteristic manifold, that the ratio of the imaginary part of the subprincipal symbol to the real eigenvalue of the Hamilton map is bounded and that the sum of the real part of the subprincipal symbol and the modulus of the imaginary eigenvalue of the Hamilton map is strictly positive.."
Etymology
From sub- + principal.
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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.