Jainism ke anusaar, "Dwidal" shabd ka arth hai "do bhaag wala" ya "do dalon wala." Jain darshan mein "dwidal vanaspati" ka ullekh milta hai. Vanaspati (vanaspati kaya jeev) do prakar ke hote hain:

1. Ekendriya Sadharan Vanaspati (Anantkaya) – Jo akhand ya ek dal wale hote hain, jaise ki akar ka ek hi roop, poora sharir ek hi hota hai. Jaise: paani, mitti, agni, hawa, prithvi, etc.
2. Ekendriya Vishesha Vanaspati (Dwidal) – Jo do dalon ya do bhaagon mein vibhakt hote hain. Jaise: aam, jamun, imli, etc. Inmein ek beej ke do tukde ya dal hoti hain, isliye ise "dwidal" kaha jata hai.

Toh, Dwidal ka arth hai—do dalon wala beej ya vanaspati.