From an unused root meaning to extrude; a viper (as thrusting out the tongue, i.e. Hissing) -- adder, cockatrice.
H6848. tsepha
' צִפְעוֺנִי noun masculine id.; — absolute ׳צ Isaiah 11:8 ("" מָּ֑תֶן), צ ׳בֵּיצֵי 59:5; כְּצִפְעֹנִי Proverbs 23:32 (simile; "" נָתָשׁ); plural צִפְעֹנִים Jeremiah 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.
II. צפע (√ of following; compare Arabic cacavit, , Ethiopic excrement.).