Definition: possessed of a special effort as opposed to लघु; cf. तद् गुरु भवति M. Bh. Ahnika 1। (2) heavy, a technical term including दीर्घ (long) vowel as also a ह्रस्व (short) vowel when it is followed by a conjunct consonant, (cf. संयोगे गुरु । दीर्घ च। P. I. 4.11, 12) or a consonant after which the word terminates or when it (the vowel) is nasalized; cf. Tai. Pr. XXII. 14, cf. also R. Pr. I. 5.