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tetrastoon

noun tet·ra·sto·on \ ˌte‧trəˈstōˌän , te‧ˈtrastəˌwän \
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Definition of tetrastoon

plural tetrastoa \-stōə, -stəwə\
: a courtyard enclosed by four porticoes

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Origin and Etymology of tetrastoon

Greek, from neuter of tetrastoos having four porticoes, from tetra- + stoa portico

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