IPA: /ˌstrɪdʒəˈleɪtəri/
KK: /strɪdʒəˌleɪtəri/
Relating to the ability to produce a sound by rubbing body parts together, often seen in certain insects.
The stridulatory organs of the cricket create a distinctive sound during mating calls.
Stridulatory is derived from "stridulus" (meaning chirping or creaking) and the suffix "-ory" (meaning relating to or characterized by). The word describes something that is characterized by or relating to a chirping or creaking sound, often used in the context of certain insects making sounds.
Think of the chirping sound ('stridulus') that some insects make, and remember that 'stridulatory' refers to something related to that chirping.