Lexical Definition

‎הֲמֻלָּה‎ hămullâh (ham-ool-law') tumult H:N-F
or (too fully) הֲמוּלָּה hămûwllâh (ham-ool-law'); (Jeremiah 11:16), feminine passive participle of an unused root meaning to rush (as rain with a windy roar)

speech, tumult.

1) rushing, roaring, rainstorm, roaring sound, rushing sound

Usage: 2 forms in 2 verses
Form Translated As     In Verse(s)
הֲמוּלָּ֣ה a rainstorm Jer.11.16
הֲמֻלָּ֖ה a rainstorm Ezek.1.24

Brown-Driver-Briggs

‎הֲמֻלָּה‎, ‎הֲמוּלָּה‎ noun feminine rain-storm (?),rushing or roaring sound (?): ‎קוֺל הֲמוּלָּה גְדֹלָה‎ Jer 11:16 sound of a great storm, of wind fanning flames in tree (in figurative of Yahweh's judgement on Judah); > AV RV Da tumult; ‎קוֺל הֲמֻלָּה כְּקוֺל‎ ‎מַחֲנֶה‎ Ezek 1:24 of noise of wings of living creatures in Ezekiel's vision (strike out B Co compare Hi).

Brown-Driver-Briggs References

Book Refs
Jeremiah 11:16
Ezekiel 1:24