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Webster’s Dictionary (1828)



385 words match “NUL”

OVUM n.
A more or less spherical and transparent mass of granular protoplasm, which by a process of multiplication and growth develops into a mass of cells, constituting a new individual like the parent; an egg, spore, germ, or germ cell. See Illust. of Mycropyle.
PALLAH n.
A large South African antelope (Æpyceros melampus). The male has long lyrate and annulated horns. The general color is bay, with a black crescent on the croup. Called also roodebok.
PANNUS n.
A very vascular superficial opacity of the cornea, usually caused by granulation of the eyelids. Foster.
PAROXYTONE n.
A word having an acute accent on the penultimate syllable.
PAXILLUS n.
starfishes. They are pillarlike, with a flattened summit which is covered with minute spinules or granules. See Illustration in Appendix.
PEARLASH n.
A white amorphous or granular substance which consists principally of potassium carbonate, and has a strong alkaline reaction. It is obtained by lixiviating wood ashes, and evaporating the lye, and has been an important source of potassium compounds. It is used in making soap, glass, etc.
PEPSINOGEN n.
The antecedent of the ferment pepsin. A substance contained in the form of granules in the peptic cells of the gastric glands. It is readily convertible into pepsin. Also called propepsin.
PERICLASE; PERICLASITE n.
dark green mineral, consisting essentially of magnesia (magnesium oxide), occurring in granular forms or in isometric crystals.
PHAGOCYTE n.
ich plays a part in retrogressive processes by taking up (eating), in the form of fine granules, the parts to be removed.
PIGMENTED a.
ally (Biol.), filled or imbued with pigment; as, pigmented epithelial cells; pigmented granules.
PINITE n.
A compact granular cryptocrystalline mineral of a dull grayish or greenish white color. It is a hydrous alkaline silicate, and is derived from the alteration of other minerals, as iolite.
PLACET n.
civil power to the promulgation of an ecclesiastical ordinance. Shipley. The king . . . annulled the royal placet. J. P. Peters.
PLASTID; PLASTIDE n.
One of the many minute granules found in the protoplasm of vegetable cells. They are divided by their colors into three classes, chloroplastids, chromoplastids, and leucoplastids.
POLYPITE n.
zooids, or polyps, of a coral, hydroid, or siphonophore; a hydranth. See Illust. of Campanularian.
PROPAROXYTONE n.
A word which has the acute accent on the antepenult.
PROPERISPOMENON n.
A word which has the circumflex accent on the penult.
PROPODITE n.
The sixth joint of a typical leg of a crustacean; usually, the penultimate joint.
PROTOPLASM n.
The viscid and more or less granular material of vegetable and animal cells, possessed of vital properties by which the processes of nutrition, secretion, and growth go forward; the so-called " physical basis of life;" the original cell substance, cytoplasm, cytoblastema, bioplasm sarcode, etc.
PSEUDOBACTERIA n.
Microscopic organic particles, molecular granules, powdered inorganic substances, etc., which in form, size, and grouping resemble bacteria.
PSEUDORHABDITE n.
corpuscles found in the integument of certain Turbellaria. They are filled with a soft granular substance.
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