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'.
early 14c., loose, hanging part of anything, from Anglo-French pendaunt hanging (c.1300), Old French pendant (13c.), noun use of present participle of pendre to hang, from Latin pendere to hang, from PIE root *(s)pen(d)-to pull, draw, stretch (see span (v.)). Meaning dangling part of an earring is attested from 1550s.