
1) Form of Vishnu 
Found on 
https://www.crosswordclues.com/clue/yajna

 In Hinduism, yajña (यज्ञ; IAST: {IAST|yajña}, also transliterated yagya, yaga or yadnya) or yagam (யாகம்), is a ritual of offerings accompanied by chanting of Vedic mantras (also `worship, prayer, praise, offering and oblation, sacrifice` according to Monier-Williams) derived from the practice in Vedic times. Yajna is an anci.....
Found on 
http://en.wikipedia.org/wiki/Yajna
 [avatar]
[avatar]  Yajna (यज्ञ, {IAST|yajña}) or Yajneshwara (`Lord of Yajna`) is mentioned as an avatar of the Hindu god Vishnu in the Bhagavata Purana. As Yajna, Vishnu is the embodiment of the Hindu sacrifice ritual or Yajna. He was also the Indra (king of the gods) of the Svayambhuva Manvantara, era of Svayambhuva Manu. ==Mythology== The...
Found on 
http://en.wikipedia.org/wiki/Yajna_(avatar)

the Vedic fire ritual. In general, it refers to worship of any form. Metaphorically, yajña can also refer to ‘an act of self-dedication,’‘service above self,’ or ‘respecting the divine presence.’
Found on 
http://indiafacts.org/glossary-of-terms-in-hinduism/

Hindu sacrificial rite
Found on 
http://phrontistery.info/y.html

(Sanskrit: `sacrifice, offering`), in Hinduism, worship based on rites prescribed in the earliest scriptures of ancient India, the Vedas, in ... [1 related articles]
Found on 
http://www.britannica.com/eb/a-z/y/1

ritual sacrifice, prevalent during the Vedic age but still performed today especially through the havan.
Found on 
https://iskconeducationalservices.org/HoH/extras/02glossary.htm

(Skr.) Sacrifice, a Vedic (q.v.) institution which became philosophically interpreted as the self-sacrifice of the Absolute One which, by an act of self-negation (nisedha-vyapara) became the Many. -- K.F.L.
Found on 
https://www.encyclo.co.uk/local/21203
  No exact match found.