piniform
/ˈpʌɪnɪfɔːm/Anatomy rare
adjective
Having the shape of a pine cone; especially in piniform decussation noun the superior pyramidal decussation, a roughly conical area of the anterior medulla oblongata between the olivary nuclei.
Origin
Late 19th century; earliest use found in John S. Billings (1838–1913). From classical Latin pīnus pine + -iform, perhaps after scientific Latin piniformis.