Hydromyelia is a medical condition that involves widening of the intraspinal cavity or is a marked dilatation of the central spinal canal. The central canal of the spinal column is the main area of affectation that results to increased pressure due to fluid accumulation.
dangling participle - a participle (usually at the beginning of a sentence) apparently modifying a word other than the word intended: e.g., `flying across the country' in `flying across the country the Rockies came into view'.
Grammar. to occur as a modifier without a head or as a participle without an implied subject, as leaving the tunnel in The daylight was blinding, leaving the tunnel. verb (used with object), dangled, dangling. 4. to cause to dangle; hold or carry swaying loosely.