| 1 |
[ noun ] a structure or object that impedes free movement
Used in print (LeRoy Fothergill, "Biological Warfare", in Peter...)Very small particles , however , in a size range of 1 to 4 microns in diameter are capable of passing these impinging barriers and entering the alveolar_bed of the lungs . (A. N. Nagaraj and L. M. Black, "Localization of...)A red filter , Zeiss barrier filter with the code ( Schott ) designation BG 23 , was also used in the ocular lens assembly as it improved the contrast between specific and nonspecific fluorescence . (Stephen Longstreet, Eagles Where I Walk....)On the shores north and south , the fishers and mooncursers - smugglers - lived along the churning Great_South_Bay and the narrow barrier of sand , Fire_Island . The chevaux_de_frise , those sharp stakes and barriers around the fort at the Battery , pointed to a conflict between the town and sea_power rolling in glassy swells as the tide came_in . |
| 2 |
[ noun ] any condition that makes it difficult to make progress or to achieve an objective
Synonyms Examples "intolerance is a barrier to understanding" Used in print (The New York Times,...)Despite countless barriers and disappointments , Shea moved forward . (Philip Jos‚ Farmer, The Lovers....)Perhaps , the psychological barriers that had prevented her from conceiving Hal 's child would no_longer be present . Related terms |
| 3 |
[ noun ] anything serving to maintain separation by obstructing vision or access
Used in print (Richard F. McLaughlin, et al., "A study of the...)For_example , the marked susceptibility of the monkey to respiratory infection might be related_to its delicate , long alveolar ducts and short , large bronchioles situated within a parenchyma entirely lacking in protective supportive tissue barriers such_as those found in types 1 , and 3 , . This maybe due_to the heavy interlobular connective_tissue barriers present . Related terms |
| 4 |
[ noun ] Last name, frequency rank in the U.S. is 6936
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