Dictionary Definition:
Maṇḍala [cp. Vedic maṇḍala] 1. circle D i.134 (paṭhavi˚, cp. puthavi˚ Sn 990); Vism 143 (˚ŋ karoti to draw a circle, in simile), 174 (tipu˚ & rajata˚ lead -- & silver circle, in kasiṇa practice); VvA 147 (of a fan=tālapattehi kata˚ -- vījanī). -- 2. the disk of the sun or moon; suriya˚ VvA 224, 271 (divasa -- kara˚);canda˚ Vism 174; PvA 65. -- 3. a round, flat surface, e. g. jānu˚ the disk of the knee, i. e. the knee PvA 179; naḷāta˚ the (whole of the) forehead D i.106; Sn p. 108. -- 4. an enclosed part of space in which something happens, a circus ring; e. g. M i.446 (circus, race -- ring); assa˚ horse -- circus, raceground, Vism 308; āpāna˚ drinking circle, i. e. hall; kīḷa˚ play -- circle, i. e. games J vi.332, 333; DhA iii.146; keḷi˚ dice board (?) J i.379; gā˚ Th i.1143, cp. trs. ib. n. 3;go˚ ox -- round Sn 301; jūta˚ dicing table J i.293; yuddha˚ fightingring Vism 190; ranga˚ play -- house VvA 139; vāta˚ tornado J i.73. -- 5. anything comprised within certain limits or boundaries, a group J v.418 (chāpa˚ litter of young animals). -- 6. border as part of a bhikkhu's dress, hem, gusset Vin i.287;ii.177.
-- agga [cp. Sk. maṇḍal' āgra Halāyudha 2, 317 at Aufrecht p. 301] a circular sword or sabre Miln 339. -- māla (sometimes māḷa) a circular hall with a peaked roof, a pavilion D i.2, 50 (ḷ); Miln 16 (ḷ); Sn p. 104; SnA 132 (Npl.); VvA 175.