ice needle

British  

noun

1. meteorol one of many needle-like ice crystals that form cirrus clouds in clear cold weather

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Example Sentences

Some of the most breathtaking zen garden patterns on the planet owe their existence to an unlikely artist: thousands of tiny “ice needles.”

From Scientific American

Pine needles grow their own ice needles, turning into rimed maces.

From Scientific American

This is because ice needles have formed, pushing the soil upwards, and the pressure of a footstep crushes them down again.

From The Guardian

It is supplied by thawing ice needles and gravity.

From Scientific American

The punt followed the canals, cut at right angles; progress was slow, impeded by ice needles, that formed by the cold clustered on the sedges of the bank.

From Project Gutenberg