WordPress at a glance
action is not described

(taxonomy)_term_edit_form_top action-hook . WP 4.5.0

Fires at the beginning of the Edit Term form.

At this point, the required hidden fields and nonces have already been output.

The dynamic portion of the hook name, $taxonomy, refers to the taxonomy slug.

Usage

add_action( '(taxonomy)_term_edit_form_top', 'action_function_name_9244', 10, 2 );
function action_function_name_9244( $tag, $taxonomy ){
	// action...
}
$tag(object)
Current taxonomy term object.
$taxonomy(string)
Current $taxonomy slug.

Where the hook is called

In file: /wp-admin/edit-tag-form.php
(taxonomy)_term_edit_form_top
wp-admin/edit-tag-form.php 115
do_action( "{$taxonomy}_term_edit_form_top", $tag, $taxonomy );

Where the hook is used (in WP core)

Does not used.