pyrene

/ˈpaɪriːn/
noun
  1. The hard stone or pit inside a fruit, such as a peach, plum, or cherry.
    • The cherry's pyrene is too hard to bite through, so you have to spit it out.
    • Some fruits, like olives, have a single pyrene in the center.
    • She carefully removed the pyrene from the peach before slicing it.
  2. A type of small, hard seed or nutlet found in certain fruits, especially in the rose family.
    • Botanists study the shape of pyrenes to identify different species of plants.
    • Blackberries are made up of many tiny drupelets, each containing a small pyrene.
    • The raspberry's pyrenes are what give it that slightly crunchy texture.
Synonyms
What does "pyrene" mean? | whatsthatwordmean | whatsthatwordmean