Noun
A line, ridge, furrow, or band of fibers, especially in the median line; as, the raphe of the tongue.
Same as Rhaphe.
Source: Webster's dictionaryCertain araphid species, that is pennate diatoms without a raphe, have been documented as anisogamous and are, therefore, considered to represent a transitional stage between centric and raphid pennate diatoms, diatoms with a raphe. Source: Internet
Other seed appendages include the raphe (a ridge), wings, caruncles (a soft spongy outgrowth from the outer integument in the vicinity of the micropyle), spines, or tubercles. Source: Internet
Periaqueductal grey (with hypothalamic hormone aid) hormonally signals reticular formation’s raphe nuclei to produce serotonin that inhibits laminae pain nuclei. Source: Internet