Assertion: fin whale's baleen | /r/Synonym | whalebone
Facets:
value: at the time
type: TEMPORAL
value: informally
type: MANNER
Source sentences:
text: Baleen is informally known as "whalebone.
text: Also known as whalebone, baleen is a filter-feeder system inside the mouths of whales in the Mysticeti suborder.
text: Melville claims this whale was the first to be regularly hunted by human beings and is famously known for providing baleen, which was also known as "whalebone" at the time.
text: Melville claims this whale was the first to be regularly hunted by human beings and is famously known for providing baleen, which was also known as "whalebone" at the time.