The lowest layer of ice on a body of water, typically formed in colder temperatures and often seen in frozen lakes or rivers.

निचला बर्फ

English Usage: In winter, the bottom ice of the lake becomes thick enough to support ice fishing.

Hindi Usage: सर्दियों में, झील की निचली बर्फ इतनी मोटी हो जाती है कि वह बर्फीली मछली पकड़ने का समर्थन कर सके।