seed nuclei

seed nuclei

[′sēd ‚nü·klē‚ī]
(astrophysics)
Nuclei from which other nuclei are synthesized in stars.
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References in periodicals archive ?
During the thermal-pulsation phase of a middleweight star's evolution, some 100 million neutrons are buzzing through each cubic centimeter of its core, bombarding potential seed nuclei.
Since seed nuclei are scarce, cloud particles may grow large and then quickly precipitate out of the atmosphere.