Phrase guide

Rupert's drop

noun · 1 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

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1

noun

Meaning 1

A glass bead created by dripping molten glass into cold water so it solidifies into a tadpole shape with a very tough head but a long fragile tail which, if damaged, causes the bead to disintegrate explosively.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: Dutch tear, glass tear, Prince Rupert's drop, Prince Rupert's tear, Rupert's tear

Antonyms: none provided

History

Etymology

Named after Prince Rupert of the Rhine, nephew of Charles I, who brought them to England in 1660.