cuṇṇa : [nt.] powder; chunam; soap-powder.

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

Cuṇṇa [Sk. cūrṇa, pp. of carvati, to chew, to *sqer to cut, break up, as in Lat. caro, Sk. kṛṇāti (cp. kaṭu); cp Lit. kirwis axe, Lat. scrūpus sharp stone, scrupulus, scortum. See also calaka2 & cp. Sk. kṣunna of kṣud to grind, to which prob. P. kuḍḍa] 1. pp. broken up, powdered; only in cpd. ˚vicuṇṇa crushed to bits, smashed up, piecemeal J i.73; ii.120, 159, 216; iii.74. -- 2. (nt.) (a) any hard substance ground into a powder; dust, sand J i.216; VvA 65 (paŋsu˚); Pv iii.33(suvaṇṇa˚ gold -- dust; PvA 189=vālikā); DA i.245 (id.); DhsA 12. -- (b) esp. "chunam" (Anglo -- Ind.) i. e. a plaster, of which quicklime & sand are the chief ingredients & which is largely used in building, but also applied to the skin as a sort of soap -- powder in bathing. Often combd with mattikā clay, in distinction of which c. is for delicate use (tender skin), whereas m. for rougher purposes (see Vin i.202); cuṇṇāni bhesajjāni an application of c. Vin i.202. -- Vin i.47=52; ii.220, 224 sq.; A i.208; iii.25; J v.89. cuṇṇa -- tela -- vālaṇḍupaka Vism 142 (where Asl 115 reads cuṇṇaŋ vā telaŋ vā leḍḍūpaka). -- nahāniya˚ D i.74=M iii.92; PvA 46; na -- hāna˚ J ii.403, 404. -- gandha -- cuṇṇa aromatic (bath) powder J i.87, 290; iii.276; candana˚ id. Miln 13, 18. -- iṭṭhaka˚ plaster (which is rubbed on the head of one to be executed) PvA 4, cp. Mṛcchakaṭika X, beginning (stanza 5) "piṣṭa -- cūrṇâvakīrṇaśca puruṣo 'haŋ paśūkṛtaḥ."
   -- cālanī a mortar for the preparation of chunam Vin i.202; -- piṇḍa a lump of ch. Vin iii.260; iv.154 sq.

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

 cuṇṇa: n. 粉末

巴漢辭典 編者：(斗六) 廖文燦