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Webster’s Dictionary (1828)

98,828 entries. Headwords are matched first, then definition text.

56,206 words match “ON”

AMMONIACAL FERMENTATION n.

Any fermentation process by which ammonia is formed, as that by which urea is converted into ammonium carbonate when urine is exposed to the air.

Combined or impregnated with ammonia.

Of or pertaining to ammonia.

There are many genera and species, and all are extinct, the typical forms having existed only in the Mesozoic age, when they were exceedingly numerous. They differ from the nautili in having the margins of the septa very much lobed or plaited, and the siphuncle dorsal. Also called serpent stone, snake stone, and cornu…

AMMONITIFEROUS a.

Containing fossil ammonites.

AMMONITOIDEA n.

An extensive group of fossil cephalopods often very abundant in Mesozoic rocks. See Ammonite.

A compound radical, NH4, having the chemical relations of a strongly basic element like the alkali metals.

AMMUNITION n. 4 definitions

Military stores, or provisions of all kinds for attack or defense. [Obs.]

A thin membrane surrounding the embryos of mammals, birds, and reptiles.

Removal; a putting away. [Obs.] Bp. Ward (1673).

To admonish. [Obs.]

AMONG; AMONGST prep. 3 definitions

Mixed or mingled; surrounded by. They heard, And from his presence hid themselves among The thickest trees. Milton.

A dry kind of cherry, of a light color. Simmonds.

AMORTISE; AMORTISATION; AMORTISABLE; AMORTISEMENT v.

Same as Amortize, Amortization, etc.

AMORTIZATION n. 2 definitions

The act or right of alienating lands to a corporation, which was considered formerly as transferring them to dead hands, or in mortmain.

AMOTION n. 2 definitions

Deprivation of possession.

AMPERE HOUR; AMPERE MINUTE; AMPERE SECOND n.

The quantity of electricity delivered in one hour by a current whose average strength is one ampère. It is used as a unit of quantity, and is equal to 3600 coulombs. The terms Ampère minute and Ampère second are sometimes similarly used.

AMPHICTYONIC a.

Of or pertaining to the Amphictyons or their League or Council; as, an Amphictyonic town or state; the Amphictyonic body. W. Smith.

Deputies from the confederated states of ancient Greece to a congress or council. They considered both political and religious matters.

A league of states of ancient Greece; esp. the celebrated confederation known as the Amphictyonic Council. Its object was to maintain the common interests of Greece.