We don't have synonyms for nigellas yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are nitella, nigella and novellas.
(n) :
The seeds of the plant Nigella sativa, used as a culinary spice.
(n) :
Any plant of the genus Nigella of about twelve species of annual flowering plants, the blooms of which are generally blue in colour but also found in shades of pink, white and pale purple.
(n) :
The seeds of the plant Nigella sativa, used as a culinary spice.
(n) :
Any plant of the genus Nigella of about twelve species of annual flowering plants, the blooms of which are generally blue in colour but also found in shades of pink, white and pale purple.