WordPress at a glance
action is not described

woocommerce_archive_description action-hook . WC 1.0

Hook: woocommerce_archive_description.

Usage

add_action( 'woocommerce_archive_description', 'action_function_name_2071' );
function action_function_name_2071(){
	// action...
}

Where the hook is called

In file: /templates/archive-product.php
woocommerce_archive_description
woocommerce/templates/archive-product.php 44
do_action( 'woocommerce_archive_description' );
woocommerce/includes/wc-template-functions.php 977
<?php do_action( 'woocommerce_archive_description' ); ?>

Where in WP core the hook is used WooCommerce

woocommerce/includes/wc-template-hooks.php 62
add_action( 'woocommerce_archive_description', 'woocommerce_taxonomy_archive_description', 10 );
woocommerce/includes/wc-template-hooks.php 63
add_action( 'woocommerce_archive_description', 'woocommerce_product_archive_description', 10 );