Dictionary Definition:
Vāla1 [Vedic vāla; connected with Lat. adūlāre (ad+ ūlāre) to flatter (lit. wag the tail, like a dog), cp. E. adulation; Lith. valaī horse hair] 1. the hair of the tail, horse -- hair, tail Vin ii.195=J v.335 (pahaṭṭha -- kaṇṇavāla with bristling ears & tail, of an elephant); J v.274 (so read for phāla, cp. p. 268, v. 113); PvA 285 (˚koṭi, so read for bāla˚); Sdhp 139. -- pallankassa vāle bhinditvā destroying the hair ( -- stuffing) of a couch Vin ii.170=DA i.88; cp. Vin iv.299: pallanko āharimehi vālehi kato. -- On v. in similes see J.P.T.S. 1907, 136. -- 2. a hair -- sieve [also Vedic] M i.229.
-- agga the tip of a hair A iii.403; Miln 250 (˚vedha hitting the tip of a hair, of an archer); DA i.66. -- aṇḍupaka a cert. material, head dress (?) A i.209 (so read for vālanduka); Vism 142; DhsA 115 (reads leḍḍūpaka). -- kambala a blanket made of horse -- tails D i.167; A i.240, 296; Pug 55. -- koṭi the tip of the hair PvA 285. -- rajju a cord made of hair S ii.238; A iv.129; J ii.161. -- vījanī a fan made of a Yak's tail, a chowrie D i.7. -- vedhin (an archer) who can hit a hair J i.58 (akkhaṇa -- vedhin+); Vism 150; Mhvs 23, 86 (sadda -- vedhin vijju -- vedhin+). The abstr. ˚vedhā hitting a hair, at Vism 150. -- fig. an acute arguer, a hair -- splitter; in standing phrase paṇḍitā nipuṇā kata -- para -- ppavādā vālavedhi -- rūpā at D i.26; M i.176; ii.122; see expln at DA i.117.