artiad

noun

ar·​ti·​ad

ˈärtēˌad,

-rshēˌ-

plural -s

1

a

obsolete : an element or radical of even valence

b

: an element of even atomic number

—contrasted with perissad

2

: one of the Artiodactyla

Word History

Etymology

Greek artios even + English -ad

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