The act of stretching (extending the limbs and neck), as a manifestation of weariness, a sign of disease, etc. In later use also: yawning (rare).
Early 17th century; earliest use found in Randle Cotgrave (fl. 1587–?1630), lexicographer. From French pandiculation from classical Latin pandiculāt-, past participial stem of pandiculārī + French -ion.