biarticulate
adjective
bi·ar·tic·u·late
¦bī-(ˌ)är-¦ti-kyə-lət,
-ˌlāt
variants
or biarticulated
¦bī-(ˌ)är-¦ti-kyə-ˌlā-təd
biology
: having or consisting of two joints
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Merriam-Webster unabridged
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