Related:

• ano-: [SI: the next quantifier below {micro-}; meaning * 10^(-9)] pref.
  Smaller than {micro-}, and used in the same rather loose and connotative way....
• pico- pref. [SI: a quantifier meaning * 10^-12] Smaller than nano
  used in the same rather loose connotative way as nano- and micro-....
• pico-: [SI: a quantifier meaning * 10^-12] pref.
  Smaller than {nano-}; used in the same rather loose connotative way as {nano-} and {micro-}....
• quantifiers In techspeak and jargon, the standard metric prefixes used in the SI (Systè
  me International) conventions for scientific measurement have dual uses....
• micro- pref. 1. Very small; this is the root of its use as a quantifier prefix.
  2. A quantifier prefix, calling for multiplication by 10^(-6) (see quantifiers)....
• micro-: pref. 1. Very small; this is the root of its use as a quantifier prefix.
  2. A quantifier prefix, calling for multiplication by 10^(-6) (see {{quantifiers}})....
• PI seconds is a nanocentury. -- Tom Duff, Bell Lab
• How many seconds are there in a year? If I tell you there are 3.
  155 x 10^7, you won't even try to remember it. On the other hand, who could forget that, to within half a percent, pi seconds is a nanocentury....