From Hindupedia, the Hindu Encyclopedia
By M. A. Alwar
Indriyāyatanam is a neutral form.
It is derived from "indriyāṇāmāyatanamāśrayasthānam" which means 'abode of the indriyas'.
It's synonym is "the body" as per Hemacandra.
- Shabdakalpadrumah by Raja Radhakantdev, Varadaprasada Vasu, Haricarana Vasu