Siddhasana

Siddhasana (सिद्धासन; {IAST-hi1|siddhāsana}) or Accomplished Pose is an asana, also known as ardha - padmasana where ardha is sanskrit word for half. ==Etymology== The name comes from the Sanskrit words siddha (सिद्धा; siddha) meaning both `perfect` and `adept`, and asana (आसन; āsana) meaning `posture` or ...
Found on http://en.wikipedia.org/wiki/Siddhasana

Siddhasana

a meditative seating posture in which the left heel presses the perineum (stimulating the mooladhara chakra); also called as the adept's pose or the 'pose of perfection'.
Found on http://www.doyogawithme.com/yoga_glossary

Siddhasana

A meditative seating posture in which the left heel presses the perineum (stimulating the mooladhara
Found on http://www.superglossary.com/Glossary/Health/Yoga/
No exact match found