1. atomic number 70, yb, ytterbium

a soft silvery metallic element; a rare earth of the lanthanide series; it occurs in gadolinite and monazite and xenotime

• atomic number 70
• ytterbium

2. yb, ybit, yottabit

a unit of information equal to 1000 zettabits or 10^24 bits

• ybit
• yottabit

3. yb, yottabyte

a unit of information equal to 1000 zettabytes or 10^24 bytes

• yottabyte

4. yb, yib, yobibyte, yottabyte

a unit of information equal to 1024 zebibytes or 2^80 bytes

• yib
• yobibyte
• yottabyte