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syndactyly

/ˌsɪnˈdæk.tə.li/noun

syndactyly is a noun meaning “The normal condition, in some animals and birds, of having fused digits” (English Wiktionary, September 2026). It is spelled S-Y-N-D-A-C-T-Y-L-Y, and it appears about once in every 42 million words in written English (wordfreq, 2021 data). The plural of syndactyly is syndactylies.

What does syndactyly mean?

noun

  1. 1

    The normal condition, in some animals and birds, of having fused digits.

  2. 2

    The anomalous condition, in humans, of having some fingers or toes fused with a web.

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).

How do you pronounce syndactyly?

  • /ˌsɪnˈdæk.tə.li/

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).

Forms of syndactyly

  • syndactylies plural

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).

How common is syndactyly?

Syndactyly appears about once in every 42 million words in written English, the 199,120th most frequent word form in the list.

Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).

Where does syndactyly come from?

From syn- + Ancient Greek δάκτυλος (dáktulos, “finger”) + -y.

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).