Definition of "hurdle" []

• Sports A light portable barrier over which competitors must leap in certain races. (noun)
• Sports A race in which a series of such barriers must be jumped without the competitors' breaking their stride. (noun)
• Sports A leaping step made off one foot as means of maximizing spring at the end of an approach, as to a dive. (noun)
• An obstacle or difficulty to be overcome: the last hurdle before graduation. (noun)
• Chiefly British A portable framework made of intertwined branches or wattle and used for temporary fencing. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Andrew, the main hurdle is not how to make hydrogen storage cost effective."
• "The main hurdle is how to make Hydrogen storage cost effective."
• "JA: The main hurdle is the competition and a shrinking market for short fiction."