riveting-bur 
riveting-bur (riv'et-ing-ber), n. A washer upon 
which a rivet-head is swaged down : sometimes 
used with small rivets. 
riveting-forge (riv'et-ing-forj), n. A portable 
forge used in heating rivets. 
riveting-hammer (riv'et-ing-hamer), n. A 
hammer with a longhead, flat face, and narrow 
peen, used for swaging down rivets. See cuts 
under hammer and peen. 
riveting-machine (riv'et-ing-ma-shen"), . A 
power-machine for forcing hot rivets into posi- 
tion in metal-work and heading them. Such ma- 
chines consist essentially of a die and anvil ; and in typical 
forms of the machine the work to be riveted is supported 
over the anvil, the hot rivet is put in place in the hole, 
its end resting in a die-socket in the anvil, and the hori- 
zontal die advances, squeezes the rivet into place, and 
shapes both heads at the same time. Riveting-machines 
are made in a great variety of forms for both light and 
heavy work. In some the anvil and die are both movable 
and are operated by hydraulic power. Some recent ma- 
chines are portable, and are suspended by chains from a 
crane, so that the machine can be brought to the work 
instead of carrying the work to the machine. A recent 
American machine employs an anvil and a riveting-ham- 
mer operated by compressed air and delivering a series of 
rapid blows instead of a direct pressure, and thus more 
nearly copies hand-work. Riveting-machines are some- 
times called by special names, as the girder riveter, keel 
riveter, etc. 
riveting-plates (riv'et-ing-plats), n. pi. In 
gun., small square pieces of iron on gun-car- 
riages, through which bolts pass, the heads be- 
ing riveted down upon them. 
riveting-set (riv'et-ing-set), n. A hollow-faced 
punch for swaging rivet-heads. The concavity 
is made of the shape which it is desired to give 
to the head of the rivet. 
rivet-joint (riv'et-joint), . A joint formed by 
a rivet or by rivets. 
rivet-knob (riv'et-nob), n. A form of swag- 
ing-tool used for closing down the heads of 
rivets. 
rivet-machine (riv'et-ma-shen*), n. A machine 
for making rivets from rod-iron; a rivet-making 
machine. It is essentially a form of nail-machine, cut- 
ting off the piece from the rod, stamping the head to 
shape, and finishing the rivets in quick succession. 
rivetting, w. See riveting. 
riviere (re-viar'), n. [F., a river (une riviere 
de diamante, a string of diamonds) : see river 2 .'] 
A necklace of precious stones, especially dia- 
monds ; particularly, such a piece of jewelry 
consisting of more than one string. 
Rivina (ri-vi'na), n. [NL. (Plumier, 1703), 
named after A. Q'. Rieinus: see Rivinian.] A ge- 
nus of apetalous plants of the order Phytolacca- 
cese, the pokeweed family, type of the tribe Rivi- 
nese. It is characterized by a globose and compressed 
fleshy fruit, and by flowers with a calyx of four small equal 
segments, four stamens, a short curved style, and capitate 
stigma. The five enumerated species are reducible perhaps 
to one, A'. Isevis, a native of tropical and subtropical Amer- 
ica, extending into Texas and Florida, introduced in Asia 
and some African islands. It is an erect smooth or hairy 
herb with shrubby base, 6 or 8 feet high, or in some forms 
much smaller, producing many two-forked and two-fur- 
rowed branches. It bears alternate slender-petioled thin 
ovate leaves, and slender pendulous racemes of small red- 
dish-white flowers, followed by red pea-like berries. In 
the West Indies it is called hoop-irithe. The smaller va- 
riety, humilis, is known as blood-berry, also as rouge-berry 
or rouge-plant, from a use made of its fruit before it be- 
comes dry. Both plants, especially the latter, are some- 
what cultivated for ornament. 
Rivineae (ri-vin'e-e), n. pi. [NL. (K. A. Agardh, 
1825), < Bivina + -ex.] A tribe of plants of 
the order Phytolaccaceee, characterized by a 
four- or five-parted calyx, a one-celled ovary, 
and an indehiscent dry or fleshy fruit, contain- 
ing a single seed with two plicate-convolute 
seed-leaves. It includes 10 genera, mainly South 
American, for the chief of which see Petiveria and .fit- 
vina (the type). 
riving (ri'ving), H. [Verbal n. of rive 1 , v.] 1. 
The act of cleaving or separating. 2. Refuse 
of corn. Halliwell. [Prov. Eng.] 
living-knife (ri'ving-mf), n. A tool for split- 
ting shingles, staves, etc.: same as /row 4 . 
riving-machine (ri'ving-ma-shen*), . A ma- 
chine for splitting wood with the grain to make 
hoops, staves, splints, shingles, etc. 
Rivinian (rl-vin'i-an), a. [< Bivinus (see def.) 
+ -an.] Of or pertaining to A. Q. Eivinus 
(1652-1723), a German anatomist and botanist. 
Rivinian ducts. See ducts of Rioinm, under duct. 
Rivinian or Rlvlni's gland. Same as suMingual gland 
(which see, under gland). Rivinian notch. See notch 
of Rivini, under notch. 
rivot (ri'vo), inter}. [Of obscure origin; by some 
supposed to be an imitation (with parasitic r) 
of L. eroe (= Gr. ii>o<), a shout in the festival 
of Bacchus.] An exclamation in drinking- 
bouts. 
Rim! says the drunkard. Shak., 1 Hen. IV., ii. 4. 124. 
5198 
Rim, heer 's good Juice, fresh burrage, boy ! 
Marslon, What you Will, v. 1. 
rivose (ri'vos), a. [< NL. "rieoHiix, < L. rivus, 
a stream, channel, groove: see rivulet.'] Fur- 
rowed ; specifically, marked with furrows which 
do not run in parallel directions, but are some- 
what sinuate : used especially in zoology. 
Rivularia (riv-u-la'ri-a), n. [NL. (Both, 1797), 
< L. rirulus, a small stream : see rivulet.] A ge- 
nus of mostly fresh-water algre of the class Cy- 
anopliyceee and type of the order Rivulariacese. 
The filaments are radiately arranged, agglutinated by a 
more or less firm mucilage, and unitedly forming hemi- 
spherical or bladdery well-defined forms ; the heterocysta 
are basal. They occur in both running and standing fresh 
water R.fluitans, for example, forming a blue-green scum 
on stagnant pools ; and there are a few species in brackish 
or salt water. 
Rivulariaceae (riv-u-la-ri-a'se-e), n. pi. [NL., 
< Rivularia + -acese.] An order of usually mi- 
nute algte of the class Cyanophycete, typified by 
the genus Birularia. The cells of which each flla- 
ment is composed form a continuous thread divided by 
transverse septa, and the filaments grow attached in tufts 
to a solid substratum, or make small green floating disks 
or cushions, often embedded in copious mucilage. The 
ordinary mode of multiplication is by means of hormo- 
gones, but quiescent resting-spores have been observed in 
some species. 
Rivularieae (riv*u-la-ri'e-e), n. pi. [NL., < Ri- 
vularia + -ex.] Same as Bivtilariacese. 
rivulet (riv'u-let), n. [Formerly also rivolet; 
with dim. suffix -et, < L. rivulus, a small stream, 
dim. of rivus, a stream, brook, channel, gutter 
(> It. rivo, rio = Sp. Pg. rio, a river); akin to 
Skt. / n, run, ooze, flow. Hence (< L. rivus) 
ult. E. derire, rival, corrival, etc. (but not riv- 
er' 2 ).] 1. A small stream or brook ; a stream- 
let. 
Some clear rivolet on land. 
Times' Whistle (E. E. T. S.), p. 116. 
By fountain or by shady rivulet 
He sought them. XUton, P. L., ix. 420. 
2. Inentom.: (a) One of certain geometrid moths 
of the genus Emmelesia or Cidaria : a collectors' 
name in England. The small rivulet is E. or C. alche- 
millata ; the grass-rivulet is /.'. orC. albulata; the heath- 
rivulet is K. ericetata ; and the single-barred rivulet is E. 
or C. un\fasciata. (fc) A narrow and more or less 
tortuous colored band on a transparent wing : 
a translation of the Latin rii'idis, so used in 
Loew's monographs of the Diptera. 
rivulet-tree (riv'u-let-tre), n. A low evergreen 
euphorbiaceous shrub, Pliyllanthus aitstralis, of 
Australia and Tasmania. 
rivulose (riv'u-los), a. [< NL. *rivulosus, < L. 
rivulus, a small stream: see rivulet.] In bot., 
marked with lines like the rivers in a map. 
Phillips, British Discomycetes, Gloss. 
rix 1 (riks), . [A form of rish 1 , rush 1 .] A reed. 
Halliwell. [Prov. Eng.] 
rix 2 t, v. ' [< ME. rixien, < AS. ricsian, rixian (= 
OHG. richison, also rilihison, richsenon, MHG. 
ricltesen, richsen, also richsncii), reign, < rice, 
kingdom: see riche 1 , n.] To reign. Saxon 
Chron., 265. (Stratmann.) 
rixatipn (rik-sa'shon), n. [< L. *rixatio(>i-), < 
rixari, pp. rixatus, brawl, quarrel (> It. rissare, 
scold, quarrel), < riia (> It. rissa = Sp. rija = 
Pg. reixa, rixa = F. rixe), a quarrel.] A brawl 
or quarrel. Bailey, 1731. [Rare.] 
rixatrix (rik-sa'triks), n. [NL., fern, of L. rixa- 
tor, a brawler, wrangler, < rixari, brawl : see 
rixation.] A quarrelsome woman ; a common 
scold. Souvier. [Rare.] 
rix-dollar (riks'doFar), n. [Also (Dan.) rigs- 
daler; F. rixdale'= Sp. risdala, < D. rijks- 
daalder, earlier rijcksdaelder, = Dan. rigsdaler 
= Sw. riksdaler, < Gr. reichsthaler, a rix-dollar, 
lit. 'a dollar of the kingdom,' < G. reichts, gen. of 
reicti, kingdom, + thaler, a dollar: see riche 1 , 
n., and dollar.] A name given to large silver 
coins current, chiefly during the eighteenth 
and the beginning of the nineteenth century, 
in several European countries (Germany, Swe- 
den, Denmark, etc. ). The value varied between 
roach 
Reverse. 
Rix-dotlar of Utrecht, 1805. British Museum. (Size of the original.) 
$1.15 and 60 cents United States money, but 
was usually a little over $1. 
He accepted of a rix-doUar. 
Evelyn, Diary, Aug. 28, 1641. 
Obverse. Reverse. 
Rigsdaler of Denmark, 1854, silver. British Museum. (Size of the 
original.) 
(rik'si), ?i.; pi. rixies (-siz). [Origin ob- 
scure.] The common tern or sea-swallow. 
[Prov. Eng.] 
rixy 2 (rik'si), . [Appar. < *rix, < F. rixc, < L. 
rixa, quarrel (see rixation), + -y 1 ; but no noun 
*rix, quarrel, appears.] Quarrelsome. Halli- 
well. [Prov. Eng.] 
riyo, n. See rio. 
rizet, . A former spelling of rise 1 . 
rizom (riz'om), n. [Also ruzsom; cf. Sc. rizzim 
a stalk of corn, corrupted < raceme: see raceme.' 
A plume, as that of oats or millet. [Prov. Eng.., 
rizomed (riz'omd), a. [< rizom + -cd 2 .] In 
her., having grains, as an oat-stalk used as a 
bearing: a term used when the grains are of a 
different tincture from that of the stalk: as, an 
oat-stalk vert, rizomed or. 
rizzar, v. and n. See rizzer 1 , rizsert. 
rizzer' (riz'er), r. t. [Also rizzar; prob. < OF. 
restorer, dry in the sun. Less prob., as sug- 
gested by the var. rizzle (see rizzle 1 ), < F. risso- 
ler, fry brown (see rissole), or a freq. form of 
reeze, for reast 1 : see reast 1 .] To dry in the 
sun; dry partly: as, "rizzered fish," Scott. 
[Scotch.] 
The substantialities consisted of rizzared baddies, eggs, 
ham, wheaten bread. The Smugglers, II. 76. (Jandeson.) 
rizzer 1 (riz'er), w. [Also rizzar; < rizzer 1 , v.] 
A rizzered haddock. [Scotch.] 
Leave a moderate fringe of unoystered timber, which 
strew with rizzars, interspersed at intervals. 
Socles Ambrosianx, Feb., 1832. 
rizzer 2 (riz'er), . [Also rizzar, ri:ard; perhaps 
a var. of reason, resin, raisin : see raisin 1 .] A 
red currant. [Scotch.] 
rizzle 1 (riz'l), v. t.; pret. and pp. rizzled, ppr. 
rizzliiir/. [Var. of rizzer: see rizztr 1 .] Towarm; 
dry, as in the sun ; roast imperfectly. HalliiveU. 
[Prov. Eng.] 
rizzle 2 (riz'l), i\ i. \ pret. and pp. rizzled, ppr. 
rizzling. [Perhaps lit. ' branch,' freq. from rise 2 , 
n.] To creep, as ivy, etc. Halliwell. [Prov. 
Eug.] 
R. M. An abbreviation of (n) Royal Marines; 
(b) Royal Mail ; (c) Resident Magistrate. 
R. N. An abbreviation of Royal Navy. 
rot, . A Middle English form of roel. 
Ro. An abbreviation of recto, meaning 'right- 
hand,' 'right-side.' 
roach 1 (roch), . [< ME. roclie, < OF. roclie, 
rosse, F. dial, roche (ML. roche, rocliia), a roach, 
< MD. roch, a roach (?), skate, D. nxj, a ray, = 
MLG. roche, ruche, LG. ruche, > G. roche, a 
roach, ray, thornbaek, = Sw. rockn, a ray, 
thornback, = Dan. rol;ke, a ray. = AS. reolihc, 
reohclir, a, fish, prob. a roach, ME. rohge. ronlii', 
rch^e, rcilie, a roach, = L. raia- (for *ragia), a 
