prechordal

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In front of the notochord, the stiff rod in an embryo, during early development

adjective
/priˈkɔrdəl/

Specialized

: prechordal

The prechordal plate plays a crucial role in the early development of the brain.

Examples

Abnormalities in the prechordal mesoderm can lead to developmental disorders.
Researchers studied the prechordal region to understand facial formation in embryos.
The prechordal plate is crucial for early development.
During embryogenesis, the prechordal region forms first.
The prechordal plate is essential for the formation of the brain during early embryonic stages.
In embryos, the prechordal area is important for the development of facial structures.
Researchers focus on the prechordal mesoderm to identify potential causes of birth defects.

Surface Forms

prechordal positive

Morphology

prechordal = chordal (semi-transparent) = pre + chord + al

Morphologically clear as pre- + chord + -al, but the anatomical sense relies on a specialized meaning of 'chord' (notochord) that a general learner may not know.

Etymology

Prechordal begins with pre- meaning 'before' and the chord part means 'cord' or 'string', like the spinal cord. So prechordal means 'in front of the cord', which explains why it names the area in front of the notochord, the early 'backbone' in an embryo.