1. Noun
The sperm whale (Physeter macrocephalus). It has in the top of its head a large cavity, containing an oily fluid, which, after death, concretes into a whitish crystalline substance called spermaceti. See Sperm whale.
2. Noun
large whale with a large cavity in the head containing spermaceti and oil; also a source of ambergris
Vocabulary classified under Nature and environment
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