tulā : [f.] a balance; scales; a rafter. || tūla (nt.) cotton.

A.P. Buddhadatta Mahathera, Concise Pali-English and English-Pali Dictionary [available as digital version from Metta Net, Sri Lanka]

Tulā (f.) [see tuleti. Vedic tulā; Gr. ta/las, ta/lanton (balance, weighing & weight=talentum), to/lma; Lat. tollo (lift); Goth. pulan (to carry patiently, suffer); Ger. geduld, etc.] 1. a beam or pole for lifting, carrying or supporting, a rafter Vin ii.122; VvA 188 (+gopānasī); DhsA 107. -- 2. a weighing pole or stick, scales, balance A i.88; J i.112; Dh 268; Miln 356 (t. nikkhepanāya). -- 3. fig. measure ("weighing," cp. tulanā), standard, rate S ii.236 (+pamāṇa).
   -- kūṭa false weighing, false weight (often combd with kaŋsakūṭa & mānakūṭa, false coining & false measuring) D i.5=A ii.209≈; DA i.79; DhA i.239; -- daṇḍathe beam or lever of a balance J i.113; -- puttaka a goldsmith (using scales) J v.424 (or should it be tulādhuttaka? ).

Pali-English Dictionary, TW Rhys Davids, William Stede,