bur : Idioms & Phrases

• noun North American nightshade with prickly foliage and racemose yellow flowers
  Solanum rostratum.
  

WordNet

Bur" fish`

Definitions

1. (Zoöl.) A spinose, plectognath fish of the Allantic coast of the United States (esp. Chilo mycterus geometricus) having the power of distending its body with water or air, so as to resemble a chestnut bur; -- called also ball fish, balloon fish, and swellfish.

Webster 1913

• noun a grass of the genus Cenchrus
  burgrass.
  

WordNet

• noun any of several plants of the genus Bidens having yellow flowers and prickly fruits that cling to fur and clothing
  burr marigold; beggar's-ticks; sticktight; beggar-ticks.
  

WordNet

Bur" mar"i*gold

Definitions

1. See Beggar's ticks.

Webster 1913

• noun medium to large deciduous oak of central and eastern North America with ovoid acorns deeply immersed in large fringed cups; yields tough close-grained wood
  Quercus macrocarpa; burr oak; mossycup oak; mossy-cup oak.
  

WordNet

• (Bot.), a useful and ornamental species of oak (Quercus macrocarpa) with ovoid acorns inclosed in deep cups imbricated with pointed scales. It grows in the Middle and Western United States, and its wood is tough, close-grained, and durable.

Webster 1913

• noun marsh plant having elongated linear leaves and round prickly fruit
  

WordNet

• (Bot.), a plant of the genus Sparganium, having long ribbonlike leaves.

Webster 1913

• noun coextensive with the genus Sparganium
  family Sparganiaceae; Sparganiaceae.
  

WordNet

Burr"ing ma*chine"

Definitions

1. A machine for cleansing wool of burs, seeds, and other substances.

Webster 1913

• noun any coarse weed of the genus Xanthium having spiny burrs
  cockleburr; cocklebur; cockle-burr.
  

WordNet

• noun bur marigold of temperate Eurasia
  trifid beggar-ticks; European beggar-ticks; Bidens tripartita.
  

WordNet