Definitions

from The Century Dictionary.

  • noun In insect embryology, any one of a long row of cells bordering the mesodermal layer of the primitive band and affording the first indication of the dorsal vessel.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun biology An embryonic cell, in some insects, that develops into the heart

Etymologies

from Wiktionary, Creative Commons Attribution/Share-Alike License

From cardio- + -blast

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