Standard Lemma guide
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
Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.
prefix
Used to form prototype names for as-yet undiscovered elements, when prepended to the known element above them in the same group of the periodic table.
Definition source: English Wiktionary via Wiktextract
Usage: morpheme
Topics: chemistry, natural-sciences, physical-sciences
No example sentence was provided for this meaning.
Synonyms: none provided
Antonyms: none provided
History
Etymology tree Proto-Indo-European *ís? Proto-Indo-European *h1óynos Proto-Indo-Iranian *Háykas Proto-Indo-Aryan *Háykas Sanskrit एक (eka)bor. English eka- Borrowed from Sanskrit एक (eka, “one, first”).
