Lexical Definition

‎צֶפַע‎ tsephaʻ (tseh'-fah or tsiphoniy tsif-o-nee') serpent H:N-M
from an unused root meaning to extrude

adder, cockatrice.

1) poisonous serpent
1a) a viper snake or adder

See Greek: ἀσπίς · θανατόω

Brown-Driver-Briggs

‎צִפְעוֺנִי‎ noun masculine id.; — absolute ‎׳‎‎צ‎ Isa 11:8 (|| ‎פָּ֑תֶן‎), ‎׳‎‎בֵּיצֵי צ‎ Isa 59:5 ‎כְּצִפְעֹנִי‎ Prov 23:32 (simile; || ‎נָתָשׁ‎); plural ‎צִפְעֹנִים‎ Jer 8:17 (app. ‎נְחָשִׁים‎); identification dubious; TristrNHB 275 ('possibly') daboia xanthina, a venomous viper, but vipers do not lay eggs FurrerBi HWB 2, 1423; Furrer proposes ailurophis vivex.

Brown-Driver-Briggs References

Book Refs
Proverbs 23:32
Isaiah 11:8 · 59:5
Jeremiah 8:17