411 REFERENCE · Wiktionary
2s
Reference material by Wiktionary contributors. This retains its source identity and is not 411 news reporting.
2S 2's
Translingual
Noun
mul noun
mul chemistry physics an en electron en orbital type
Related terms
mul s p d f 1s 2p 3s 3p 3d 4s 4p 4d 4f
English
Noun
en noun form
en numbers en 2; en twos.
Anagrams
en 2s S-2