. "an intersection or crossing of two tracts in the form of the letter X"@en-us . "0"^^ . . . . . . "05228496-n"^^ . . . . . . . . . . "104927406"@en-us . . . . . . . "an intersection or crossing of two tracts in the form of the letter X"@en-us . . "decussation"@en-us . "chiasma"^^ . "105228496"^^ . "chiasma"@en-us . "chiasm"@en-us . . . "0"^^ . . . .