product_cat

$tax_query = array(
	'relation' => 'AND',
	array(
		'taxonomy'         => 'product_cat',
		'terms'            => '110',
		'field'            => 'term_id',
		'operator'         => 'IN',
		'include_children' => true,
	),
	array(
		'taxonomy'         => 'product_visibility',
		'terms'            => 'outofstock',
		'field'            => 'name',
		'operator'         => 'NOT IN',
	),
);