Raphe (/ ˈreɪfi / RAY-fee; from Ancient Greek: ῥαφή, romanized: rhaphḗ, lit. 'seam'; [1] pl.: raphae or raphes) (meaning needle) has several different meanings in scientific terminology. In botany …

The meaning of RAPHE is the seamlike union of the two lateral halves of a part or organ (such as the tongue) having externally a ridge or furrow.

Serotonin-producing neurons in the raphe nucleus of the midbrain project to several key regions involved in emotion, behavior, and cognition.

The two compartments of the scrotum are distinguished externally by a middle ridge called the raphe. Internally, the raphe connects to a muscular partition, the septum, which serves to …

Other researchers have homed in on a small part of the brainstem called the raphe pallidus, which helps control automatic bodily processes. The researchers have also shown that the raphe …

A raphe is a biological term for a seam, ridge, or line formed where two symmetrical halves or structures have fused. Derived from the Greek word “rhaphe” (meaning “seam” or “suture”), it …

Sep 21, 2025 · The term “raphe” refers to a line or ridge of tissue in biological organisms that marks where two halves of a structure fuse together. It is commonly present in both …

There are five meanings listed in OED's entry for the noun raphe, two of which are labelled obsolete. See ‘Meaning & use’ for definitions, usage, and quotation evidence.

Dec 11, 2025 · raphe (plural raphae or raphes) (anatomy) A seamlike ridge or furrow on an organ, bodily tissue, or other structure, typically marking the line where two halves or sections fused …

A raphe is present in approximately 75% of bicuspid aortic valves. The commissural fusion can be over a short or long segment of the valve and can be solid or fenestrated.