Noun
- 1. ytterbium, Yb, atomic number 70, metallic element, metal
- usage: a soft silvery metallic element; a rare earth of the lanthanide series; it occurs in gadolinite and monazite and xenotime
- 2. yottabit, Ybit, Yb, computer memory unit
- usage: a unit of information equal to 1000 zettabits or 10^24 bits
- 3. yottabyte, YB, computer memory unit
- usage: a unit of information equal to 1000 zettabytes or 10^24 bytes
- 4. yottabyte, yobibyte, YB, YiB, computer memory unit
- usage: a unit of information equal to 1024 zebibytes or 2^80 bytes
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