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Raphe (/ˈreɪfɪ/; from Greek ῥαφή, "seam"[1]) has several different meanings in science.

In botany and planktology it is commonly used when describing a seam or ridge on diatoms or seeds.

In animal anatomy it is used to describe a ridged union[2] of continuous biological tissue. There are several different significant anatomical raphes:


In teratology, a malformation or congenital disorder involving a raphe, such as spina bifida, is known as a dysraphism.

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