Definition of pnicogen in US English:

pnicogen

(also pnictogen)

noun

Chemistry
  • Any of the elements in group 15 of the periodic table, comprising nitrogen, phosphorus, arsenic, antimony, and bismuth.

Origin

1960s. From ancient Greek πνίγειν to choke, stifle, to bake, stew (of unknown origin), in allusion to the properties of nitrogen or phosphorus compounds + -o- + -gen, perhaps after halogen. The form pnictogen may arise by analogy with pnictide.

Pronunciation

pnicogen

/ˈpnɪkə(ʊ)dʒ(ə)n/