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Webster’s Dictionary (1828)



36 words match “HELIUM”

LITCHI n.
The fruit of a tree native to China (Nephelium Litchi). It is nutlike, having a rough but tender shell, containing an aromatic pulp, and a single large seed. In the dried fruit which is exported the pulp somewhat resembles a raisin in color and form. [Written also lichi, and lychee.] -- lite. See -lith.…
LONGAN n.
A pulpy fruit related to the litchi, and produced by an evergreen East Indian tree (Nephelium Longan).
MARIET n.
A kind of bellflower, Companula Trachelium, once called Viola Mariana; but it is not a violet.
MYELOIDIN n.
A substance, present in the protoplasm of the retinal epithelium cells, and resembling, if not identical with, the substance (myelin) forming the medullary sheaths of nerve fibers.
MYOEPITHELIAL a.
Having the characteristics of both muscle and epithelium; as, the myoepithelial cells of the hydra.
OLFACTORY a.
more or less complicated sacs, situated in the front part of the head and lined with epithelium innervated by the olfactory (or first cranial) nerves, and sensitive to odoriferous particles conveyed to it in the air or in water.
PURPUROGENOUS a.
ing the power to produce a purple color; as, the purpurogenous membrane, or choroidal epithelium, of the eye. See Visual purple, under Visual.
RADIUM n.
essor. It is possible that lead is the stable end product. At the same time the light gas helium is formed; it probably consists of the expelled alpha particles. The heat effect mentioned above is ascribed to the impacts of these particles. Radium, in turn, is believed to be formed indirectly by an immeasurably slow di…
RAMBUTAN n.
A Malayan fruit produced by the tree Nephelium lappaceum, and closely related to the litchi nut. It is bright red, oval in shape, covered with coarse hairs (whence the name), and contains a pleasant acid pulp. Called also ramboostan.
SQUAMA n.
A scale cast off from the skin; a thin dry shred consisting of epithelium.
STIGMA n.
uter surface of a Graafian follicle, and to spots of intercellular substance in scaly epithelium, or to minute holes in such spots.
SUBEPITHELIAL a.
Situated under the epithelium.
TAPETUM n.
o make the eye visible in the dark. Sometimes applied to the whole layer of pigmented epithelium of the choroid.
THROATWORT n.
A plant (Campanula Trachelium) formerly considered a remedy for sore throats because of its throat-shaped corolla.
TUBULE n.
A minute tube lined with glandular epithelium; as, the uriniferous tubules of the kidney.
VISUAL a.
ple. It is reconverted into visual purple by the regenerating action of the choroidal epithelium. -- Visual yellow (Physiol.), a product intermediate between visual purple and visual white, formed in the photochemical action of light on visual purple.
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