neoblast

English

Etymology

From neo- +‎ -blast.

Noun

neoblast (plural neoblasts)

  1. (biology) A large, undifferentiated cell of annelid worms that participate in regeneration of lost parts.
    • 2015 May 8, Gustavo Rodríguez-Esteban et al., “Digital gene expression approach over multiple RNA-Seq data sets to detect neoblast transcriptional changes in Schmidtea mediterranea”, in BMC Genomics‎[1], volume 16, →DOI:
      To trigger neoblast proliferation and differentation,[sic] two days head and tail regenerating animals were used for the preparation of the libraries.
  2. (geology) A crystal or mineral species in metamorphic rock, formed more recently, by recrystallization, than others in the same rock.
    • 2017 October, Gavin G. Kenny, Luiz F. Morales, Martin J. Whitehouse, Joseph A. Petrus, Balz S. Kamber, “The formation of large neoblasts in shocked zircon and their utility in dating impacts”, in Geology‎[2], volume 45, number 11, Geological Society of America, →DOI, archived from the original on 18 June 2022, pages 1003–1006:
      Based on insight from large neoblast growth in terrestrial settings, we suggest that the ca. 4.33 Ga neoblasts recently reported in lunar zircon may imply a major basin-forming event on the Moon at that time.

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