ăcontĭas

ae, m.
I. A quick-darting serpent, Amm. 22, 15, 27.—
II. In plur., ăcontĭae, ārum, = ἀκοντίαι, meteors or shooting-stars with dartlike trains, Plin. 2, 25, 22, § 89.
Lewis & Short
A Latin Dictionary, 1879
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