splenetical


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sple·net·ic

 (splĭ-nĕt′ĭk) also sple·net·i·cal (-ĭ-kəl)
adj.
1. Of or relating to the spleen.
2. Affected or marked by ill humor or irritability.
n.
A person regarded as irritable.

[Late Latin splēnēticus, from Latin splēn, spleen; see spleen.]

sple·net′i·cal·ly adv.