exponential

(of growth or increase) Becoming more and more rapid; mathematically, increasing by a constant factor in each time period.

• exponentially/ˌɛkspəˈnɛnʃəli/(adv)以指数方式
• exponent/ɪkˈspoʊnənt/(n)指数；倡导者

• exponential growth
• exponential increase
• grow exponentially
• exponential curve
• exponential rise

1. 1.The virus spread exponentially — from 100 cases to 10,000 in just three weeks. (rapidly increasing)
2. 2.Computing power has increased exponentially over the past fifty years, roughly doubling every two years. (mathematical growth)

• rapid/ˈræpɪd/— happening in a short time — simpler
• accelerating/əkˈsɛləreɪtɪŋ/— increasing in speed
• mushrooming— growing rapidly — informal

from Latin "exponere" (to put forth) — ex- (out) + ponere (to place) — via the mathematical term "exponent"