ˌspənjēˈōsə, ˌspän- noun
( -s )
Etymology: New Latin, from substantia spongiosa spongy substance, from Latin substantia substance + spongiosa, feminine of spongiosus spongious
: the part of a bone (as much of the epiphyseal area of long bones) made up of spongy cancellous bone — compare compacta