V. S. Apte, The Practical Sanskrit–English Dictionary. Look up any word of the Gita in Devanagari, IAST or Harvard-Kyoto, or browse the headwords letter by letter.
Entry उच्चावच
उच्चावचuccāvacaa.P.II.1.72.
[मयूरव्यंसकादिगण]
ParasmaipadaII.1.72.
High and low, uneven, irregular, undulating; Ms.6.73.
Great and small, variegated, heterogeneous.
Various, multiform, of various kinds, diverse; उच्चावचाश्च पदार्था भवन्तीति गार्ग्यः Nir; Ms.1.38; Śi.4.46; Dk.48,14,156.