| Answer | Crossword Clue |
|---|---|
| BOOMTOWN | City with rapid population growth |
| URBANSPRAWL | Rapid city-growth phenomenon |
| boomed | experience a sudden rapid growth and expansion usually with an increase in prices business was booming |
| protophloem | the first-formed phloem that develops from procambium, usually associated with a region of rapid growth |
| protophloems | PROTOPHLOEM, the first-formed phloem that develops from procambium, usually associated with a region of rapid growth |
| progerias | a rare genetic disorder of childhood marked by slowed physical growth and characteristic signs (as baldness, wrinkled skin, and atherosclerosis) of rapid aging with death usually occurring around puberty |
