-blast(word root) budExamples of words with the root -blast: ectoblastAbused, Confused, & Misused Words by Mary Embree Copyright © 2007, 2013 by Mary Embree-blastsuff.1. Biology An immature, embryonic stage in the development of cells or tissues: erythroblast.2. Geology A crystal or mineral deposit formed in metamorphic rock: porphyroblast.[From Greek blastos, bud, germ, of unknown origin.]American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.-blast n combining form (in biology) indicating an embryonic cell or formative layer: mesoblast. [from Greek blastos bud]Collins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014blast (blæst, bl?st) n. 1. a sudden and violent gust of wind. 2. the blowing of a trumpet, whistle, etc. 3. a loud, sudden sound or noise: a harsh blast from the radio. 4. a forcible stream of air from the mouth, bellows, or the like. 5. a. air forced into a furnace by a blower to increase the rate of combustion. b. a jet of steam directed up a smokestack, as of a steam locomotive, to increase draft. 6. a forceful throw, hit, etc.: a blast down to third base. 7. Slang. something that gives great pleasure, esp. a party. 8. a vigorous outburst of criticism; attack. 9. the charge explosive used at one firing in blasting operations. 10. the act of exploding; explosion. 11. any pernicious or destructive influence, esp. on animals or plants; a blight. 12. the sudden death of buds, flowers, or young fruit. v.t. 13. to make a loud noise on; blow: to blast a horn. 14. to cause to shrivel or wither. 15. to ruin; destroy. 16. to shatter by or as if by an explosion. 17. to make, form, or open up by blasting: to blast a tunnel. 18. to curse; damn: Blast it, there’s the phone again! 19. to criticize vigorously; denounce. 20. to hit or propel with great force. 21. to shoot. v.i. 22. to produce a loud, blaring sound. 23. to shoot. 24. to use or detonate explosives, as a charge of dynamite. 25. blast off, a. (of a self-propelled rocket) to leave a launch pad. b. (of an astronaut) to travel aloft in a rocket. Idioms: (at) full blast, at maximum capacity; at or with full volume or speed. [before 1000; Middle English; Old English bl?st a blowing] blast?er, n. blast?y, adj. syn: See wind1. -blast var. of blasto- as a final element: ectoblast. Random House Kernerman Webster’s College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.