a gum yielded mostly by several species of Acacia (chiefly A. vera and A. Arabica) growing in Africa
and Southern Asia; — called also gum acacia. East Indian gum arabic comes from a tree of the Orange
family which bears the elephant apple. — Gum butea, a gum yielded by the Indian plants Butea frondosa
and B. superba, and used locally in tanning and in precipitating indigo. — Gum cistus, a plant of the
genus Cistus a species of rock rose. — Gum dragon. See Tragacanth. — Gum elastic, Elastic
gum. See Caoutchouc. — Gum elemi. See Elemi. — Gum juniper. See Sandarac. — Gum
kino. See under Kino. — Gum lac. See Lac. — Gum Ladanum, a fragrant gum yielded by several
Oriental species of Cistus or rock rose. — Gum passages, sap receptacles extending through the
parenchyma of certain plants (Amygdalaceæ, Cactaceæ, etc.), and affording passage for gum. — Gum
pot, a varnish maker's utensil for melting gum and mixing other ingredients. — Gum resin, the milky
juice of a plant solidified by exposure to air; one of certain inspissated saps, mixtures of, or having properties
of, gum and resin; a resin containing more or less mucilaginous and gummy matter. — Gum sandarac.
See Sandarac. — Gum Senegal, a gum similar to gum arabic, yielded by trees (Acacia Verek and
A. Adansoniä) growing in the Senegal country, West Africa. — Gum tragacanth. See Tragacanth.
— Gum tree, the name given to several trees in America and Australia: (a) The black gum (Nyssa
multiflora), one of the largest trees of the Southern States, bearing a small blue fruit, the favorite food
of the opossum. Most of the large trees become hollow. (b) A tree of the genus Eucalyptus. See
Eucalpytus. (c) The sweet gum tree of the United States a large and beautiful tree with pointedly lobed
leaves and woody burlike fruit. It exudes an aromatic terebinthine juice. — Gum water, a solution of
gum, esp. of gum arabic, in water. — Gum wood, the wood of any gum tree, esp. the wood of the
Eucalyptus piperita, of New South Wales.
Gum
(Gum), v. t. [imp. &. p. Gummed ; p. pr. & vb. n. Gumming.] To smear with gum; to close
with gum; to unite or stiffen by gum or a gumlike substance; to make sticky with a gumlike substance.
He frets like a gummed velvet.
Shak. Gum
(Gum), v. i. To exude or from gum; to become gummy.
Gumbo
(Gum"bo) n. [Written also gombo.]
1. A soup thickened with the mucilaginous pods of the okra; okra soup.
2. The okra plant or its pods.
Gumboil
(Gum"boil) n. (Med.) A small suppurating inflamed spot on the gum.
Gumma
(||Gum"ma) n.; pl. Gummata [NL. So called from its gummy contents See Gum.] (Med.) A
kind of soft tumor, usually of syphilitic origin.
Gummatous
(Gum*ma"tous) a. (Med.) Belonging to, or resembling, gumma.
Gummer
(Gum"mer) n. [From 2d Gum.] A punch-cutting tool, or machine for deepening and enlarging
the spaces between the teeth of a worn saw.
Gummiferous
(Gum*mif"er*ous) a. [L. gummi gum + -ferous.] Producing gum; gum- bearing.
Gumminess
(Gum"mi*ness) n. The state or quality of being gummy; viscousness.
Gummite
(Gum"mite) n. [So called because it occurs in rounded or flattened pieces which look like
gum.] (Min.) A yellow amorphous mineral, essentially a hydrated oxide of uranium derived from the
alteration of uraninite.
Gummosity
(Gum*mos"i*ty) n. Gumminess; a viscous or adhesive quality or nature. [R.] Floyer.
Gummous
(Gum"mous) a. [L. gummosus; cf. F. gommeux.]
