vanillin

From vanilla +‎ -in.

• IPA^(key): /vəˈnɪlɪn/

• Audio (Southern England):

  (file)

• Hyphenation: va‧nil‧lin

vanillin (countable and uncountable, plural vanillins)

1. A chemical compound, 4-hydroxy-3-methoxybenzaldehyde, that is the primary constituent of vanilla.
2. A synthetic compound used as a substitute for the extract of the vanilla bean.