D defs.my
Entry 1 sense Webster, 1913

Pyrena

/pĭr-ēn'-ə/ · Py·re·na · IPA /paɪˈɹiːnə/
01 n. A nutlet resembling a seed, or the kernel of a drupe.
pl. Pyrenæ ((#))
  1. 1.
    A nutlet resembling a seed, or the kernel of a drupe.(Bot.)