rgyud gsum

རྒྱུད་གསུམ
1) three kinds of tantra; 2) three continua/ continuities; 3) rgyun chags gsum pa; 4) three continuua in Sakya lam 'bras practice [IW]

1) Three Kinds of Tantra, According to Mahayoga. or Secret Mantra In General. Father Tantras pha rgyud Mother Tantras ma rgyud and Non-dual Tantras gnyis med rgyud. 2) three continua / continuities. comprised of ground, path and fruition [RY]

three continua/ kinds of tantra comprising the actual meaning: continua of ground, path and fruition, gzhi lam 'bras GD [IW]