<p><strong>Noun</strong></p><ul><li>the axis of an inflorescence when somewhat elongated, as in a raceme</li><li>in a pinnately compound leaf or frond, the prolongation of the petiole along which the leaflets are disposed</li><li>any of various axial structures</li><li>the part of the shaft of a feather bearing the web</li><li>spinal column</li></ul>