[na.pi.form] adj [L napus turnip (perh. fr. Gk napy, sinapy mustard) + ISV -iform] (ca. 1846): globular at the top and tapering off abruptly--used esp. of roots
NAPIFORM
Meaning of NAPIFORM in English
Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012