Definition of raphe
1 : the seamlike union of the two lateral halves of a part or organ (such as the tongue) having externally a ridge or furrow
2a : the part of the stalk of an anatropous ovary that is united in growth to the outside covering and forms a ridge along the body of the ovuleb : the median line or slit of the valve of certain diatoms
Recent Examples of raphe from the Web
The region, known as the dorsal raphe nucleus, or D.R.N., is best known for its link to depression.
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Origin and Etymology of raphe
New Latin, from Greek rhaphē seam, from rhaptein to sew
First Known Use: circa 1753See Words from the same year
Medical Definition of raphe
: the seamlike union of the two lateral halves of a part or organ (as of the tongue, perineum, or scrotum) having externally a ridge or furrow and internally usually a fibrous connective tissue septum
Learn More about raphe
Britannica.com: Encyclopedia article about raphe
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