Svambhavikakaya
Svabhavikakaya (Skt. svābhāvikakāya; Tib. ངོ་བོ་ཉིད་སྐུ་, ngowo nyi ku; Wyl. ngo bo nyid sku) is one of the four kayas of a buddha.
Khenpo Pema Vajra says:
The svabhavikakaya, is defined as the aspect of enlightened form that is distinguished by two-fold purity, the natural purity of basic space of reality and the purification of all temporary stains.
It is the ultimate buddha kaya. Its wisdom aspect is called the wisdom dharmakaya. And its appearance as a form kaya complete with fivefold certainty in the perception of pure beings is the sambhogakaya. Its appearance as a form kaya to impure beings is the nirmanakaya.
Four kayas (sku bzhi) - The three kayas plus svabhavikakaya [RY]
four bodies of a Buddha (sku bzhi) -
1) {ngo bo nyid sku} Natural Truth Body.
2) {ye shes chos sku} Wisdom Truth Body.
3) {longs sku} Complete Enjoyment Body.
4) {sprul sku} Emanation Body; Four Bodies. Four Buddha-Bodies.
The body of reality {chos sku}. or dharmakaya, the body of perfect rapture {longs spyod rdzogs pa'i sku} or sambhogakaya, the emanational body {sprul pa'i sku} or nirmanakaya, and the body of their essentiality {ngo bo nyid kyi sku}. or svabhavikakaya [RY]
glo bur rnam dag gi sku - kaya that is totally pure anew (one of the two aspects of svabhavikakaya) [RB]
ngo bo nyid kyi sku - essence kaya; Skt. svabhavikakaya. The 'essence body,' sometimes counted as the fourth kaya, and constituting the unity of the three kayas. Jamgön Kongtrül defines it as the aspect of dharmakaya which is 'the nature of all phenomena, emptiness devoid of all constructs and endowed with the characteristic of natural purity.' [RY]
ngo bo nyid kyi sku - svabhavikakaya, 2 aspects are rang bzhin rnam dag (pure in being itself) and blo bur dri bral (pure as regards removal of incidental stains), dimension of the existence of the union of chos sku, essential kaya [JV]
ngo bo nyid kyi sku - svabhavikakaya; dimension/ stratum of the very essence (of being) itself [RB]
ngo bo nyid kyi sku - Essence kaya; Skt. svabhavikakaya. The 'essence body.' Sometimes counted as the fourth kaya, the unity of the three kayas [RY]
ngo bo nyid kyi sku - svabhavikakaya; essence body, svabhava-kaya, quintessential body, body of essentiality; essential nature of being itself [RY]
ngo bo nyid sku - essence-kaya; svabhavikakaya, entity body, essential body, nature body, nature truth body [RY]
ngo bo nyid sku'i khyad chos gsum - the three exceptional features of the svabhavikakaya [RY]
ngo bo nyid sku'i mtshan nyid lnga - five characteristics of the svabhavikakaya [RY]
ngo bo nyid sku'i yon tan lnga - five attributes of the svabhavikakaya [RY]
rang bzhin rnam dag gi sku - kaya which is totally pure by nature (one of the two aspects of svabhavikakaya) [RB]