dominant lamellae

in a spherulite
https://doi.org/10.1351/goldbook.14257
Lamellar crystals radiating from the center of the spherulite which, by splaying, constitute the initial skeleton of the spherulite.
Notes:
  1. Crystallization of dominant lamellae is largely associated with primary crystallization.
  2. In the isothermal crystallization of crystalline polymers there is normally a single population of dominant lamellae, characterized by a single thickness.
  3. The thickness and perfection of dominant lamellae is greater than for subsidiary lamellae, especially in non-isothermal crystallization.
Source:
PAC, 2011, 83, 1831. (Definitions of terms relating to crystalline polymers (IUPAC Recommendations 2011)) on page 1858 [Terms] [Paper]