octet
Technical term for a group of eight bits, commonly used in computing and networking. Equivalent to one byte in most modern systems.
IPアドレスは32ビット、つまり4オクテットで構成される。
An IP address consists of 32 bits, that is, 4 octets.
cell octet
group octet
plane octet
Borrowed from English 'octet', ultimately from Latin 'octo' (eight).