bol (Nomen | Adjektiv)

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Ball (n)

algemeen, solid or hollow sphere
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Kugel (n)

algemeen, geometrie, mathematics: regular three-dimensional object, solid or hollow sphere, spherical physical object
plantkunde
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plantkunde
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Zwiebel (n)

plantkunde
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konvex (a)

convex, curved or bowed outward like the outside of a bowl or sphere or circle
convex
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plantkunde