Toward the right side, especially in anatomical contexts; moving in the direction of the right.
From Latin 'dexter' (right) plus the suffix '-ad' (toward). The '-ad' suffix comes from Latin and is used in anatomy to indicate direction.
Medical professionals use this precise directional term instead of just saying 'right' because it removes ambiguity—there's no confusion about whose right you mean or which way is being described from the patient's perspective.
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