olemus
struktuuri algüksus, näiteks bioloogias, kärgsides, ATM-andmesides, automaaditeoorias
Wiktionary:
12. (biology) the basic unit of a living organism, consisting of a quantity of protoplasm surrounded by a cell membrane, which is able to synthesize proteins and replicate itself
14. (computing) the minimal unit of a cellular automaton that can change state and has an associated behavior
16. a small group of people forming part of a larger organization, often an outlawed one
17. (communication) a short, fixed-length packet as in asynchronous transfer mode
18. (communication) a region of radio reception that is a part of a larger radio network

näiteid
https://en.wikipedia.org/wiki/Cell_(biology)
https://en.wikipedia.org/wiki/Cellular_automaton
https://en.wikipedia.org/wiki/Photodetector
https://en.wikipedia.org/wiki/Cellular_network
https://en.wikipedia.org/wiki/Asynchronous_Transfer_Mode#Layer_2_%E2%80%93_Datagrams

vt ka
- femtorakk
- makrorakk
- mikrorakk
- mälurakk
- pikorakk
- rakkautomaat
- väikerakk