hiccup: (usually plural) the state of having reflex spasms of the diaphragm accompanied by a rapid closure of the glottis producing an audible sound; sometimes a symptom of indigestion
symptom: (medicine) any sensation or change in bodily function that is experienced by a patient and is associated with a particular disease
genus metasequoia: genus of deciduous conifers comprising both living and fossil forms; 1 extant species: dawn redwood of China; variously classified as member of Pinaceae or Taxodiaceae