Spermaceti
Spermaceti (from Greek sperma, seed, and Latin cetus, whale) is a wax that is most often found in the head cavities of the sperm whale (small quantities of spermaceti can be found in the oils of other whales). Originally mistaken for the whale's sperm (hence the name), spermaceti is created in the spermaceti organ inside the whale's head.
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