In those supposed esoteric teachings of Buddhism, "exoteric Buddhism" believes that Nirmanakaya simple means the physical body of Buddha.
By Barbara O'Brien. Definition: In the Mahayana teaching of trikaya, a buddha is said to exist in three bodies -- the dharmakaya, sambhogakaya, and nirmanakaya.
Nirmanakaya (Skt. nirmāṇakāya; Tib. སྤྲུལ་སྐུ་, tulku; Wyl. sprul sku), or 'the dimension of ceaseless manifestation', is defined as a ...
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Nirmanakaya Those perfected beings who renounce Nirvana (the highest state of spiritual bliss) and choose a life of self-sacrifice, becoming members of that invisible ...
Nirmanakaya ('the dimension of ceaseless manifestation') is defined as a rupakaya ('form body') that arises from the ruling condition of the sambhogakaya and appears ...
Absolutely seen, only the Dharmakāya is real; the Sambhogakāya and Nirmanakaya are "provisional ways of talking about and apprehending it". 
The emanation body (nirmana-kaya) ... The emanation body (nirmanakaya) is no longer the body that the Buddha employs to perform supernatural feats; ...
Nirmanakaya is the physical aspect of an enlightened being, the medium through which communication and relating can be carried out. It can be said to be new or ...
The Mahayana doctrine of Trikaya -- the three bodies of Buddha -- teaches us about the nature of enlightenment, the nature of existence, and the way a Buddha ...