A plug - tap has the full depth of screw-thread all along its length

Campin, Hand-turning, p. 111. plug-tree (plug'trē), п. Same as plug -rod, 1. plug-ugly (plug'ugʻli), n. A city ruffian; one of a band of rowdies who indulged in wanton a aults upon persons and property in streets and public places: first used in Baltimore. [Slang.] plug-valve (plug'valv), n. A valve closed by a tapering plug at right angles to the flow of the liquid. pluml (plum), n . [Formerly also, erroneously, plumb (as in limb for lim , numb for num , etc.); plum me , with vowel shortened, earlier ploume , plūme , plūme = D. pruim = MLG. plume, LG. plum me = OHG. pfrūma , pflumo , MHG. pflūme , phlūme , phrūme , prūme , prune , G.pflaume = Icel. plōma = Sw. plommon = Dan. blomme , plum, = F. prune (> E. prune ) = Pr. pruna = Sp. dial. pruna = It. pruna , prugna , f., a plum, prūna , f., a plum, L. prūnum (pl. pruna ), neut., a plum, prūnus , f., a plumtree, προῦνος , f., earlier προῦμνον , neut., a plum, προύμνη , f., a plum-tree. Cf. Ir. plum a = Corn. plum an = Gael. plumb as , plumb a is , plum ( pilgrim , ult. peregri For the introduction of a Latin and Greek nus . fruit-name into Teut., cf. peach1 and pearl , also quine , quince .] 1. A fruit of any of the trees called plums (see defs. 2 and 3); specifically, the fruit of a tree of the genus Prunus , distinguished plum from the peach and apricot by its smooth surface, smaller size, and unwrinkled stone, and from the cherry by the bloom on its surface and commonly larger size. Plums are of use chiefly as a de ert fruit (the green gage being esteemed the best of all varieties), and as a dried fruit in the form of prunes. (See prunel.) Locally a liquor is manufactured from them, and sometimes an oil is expre ed from the kernels. 2. One of several small trees of the genus Prunus , forming the section Prunus proper. The numerous varieties of the common garden-plum are often cla ed as P. domestic a ; but all these, together with the bullace-plum, known as P. in sit it i a (see bullace ), are believed to be derived ultimately from P. spinosa ( P. com munis ), the blackthorn or sloe of Europe and temperate Asia, in its truly wild state a much-branched shrub, the branches often ending in a stout thorn. Plum-wood is useful in cabinet-work and turnery. The plum is chiefly cultivated in France (in the valley of the Loire), in Germany, and in Bosnia, Servia, and Croatia. In America the plum suffers greatly from the ravages of the curculio. (See plum - curculio .) The Japanese plum, P. Japonica , though not insect-proof, is a valued acquisition in California and the southern United States. For native species, see beach - plum , cherry - plum , and wild plum , below. In Almaunt, in himself, in male, in pec he, Ys graffed plum me .