archicerebrum

archicerebrum
n.; pl. -bra [Gr. arche, beginning; L. cerebrum, brain]
1. (ANNELIDA)
The ganglionic nerve mass of a prostomium.
2. (ARTHROPODA)
The primitive suprastomodeal nerve mass of a prostomium; the primitive brain.

Online Dictionary of Invertebrate Zoology. . 2005.

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Look at other dictionaries:

  • archicerebrum — ar·chi·cerebrum …   English syllables

  • archicerebrum — |ärkē+ noun Etymology: New Latin, from archi + cerebrum : the supra esophageal ganglia of invertebrates …   Useful english dictionary

  • archencephalon — see archicerebrum …   Dictionary of invertebrate zoology

  • brain — n. [A.S. braegen, brain] 1. The nervous center of invertebrates. 2. (ARTHROPODA) The cephalic nerve mass; the encephalon, the supraesophageal ganglion; the archicerebrum. 3. (NEMATA) The nerve ring and associated ganglia …   Dictionary of invertebrate zoology

  • protocerebrum — n.; pl. bra [Gr. protos, first; L. cerebrum, brain] (ARTHROPODA) The anterior, (in hypognathous insects dorsal), most complex part of an arthropod brain consisting of three pair of optic centers and other neuropiles functioning in intergrating… …   Dictionary of invertebrate zoology

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