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A zone or band; a layer. Zona pellucida. Etym: [NL.] (Biol.)

Of or pertaining to a zone; having the form of a zone or zones. Zonal equation (Crystallog.), the mathematical relation which belongs to all the planes of a zone, and expresses their common position with reference to the axes. -- Zonal structure (Crystallog.), a structure characterized by the arrangements of color, in…

A belt or girdle which the Christians and Jews of the Levant were obliged to wear to distinguish them from Mohammedans. [Written also zonnar.]

A division of Mammalia in which the placenta is zonelike.

Divided by parallel planes; as, zonate tetraspores, found in certain red algæ.

A white crystalline powder used as an intestinal antiseptic; beta-naphthol benzoate.

The act of treating with ozone; also, the act of converting into, or producing, ozone; ozonization.

Consisting of many zones or rings. Polyzonal lens (Opt.), a lens made up of pieces arranged zones or rings, -- used in the lanterns of lighthouses.

Situated under a zone, or zona; -- applied to a membrane between the zona radiata and the umbilical vesicle in the mammal embryo.

Belonging to the same zone; as, tautozonal planes.

A group of nomadic North American Indians including several tribes native of Arizona, New Mexico, etc.

Constantinople by the Turks, A.D. 1453. -- Byzantine historians, historians and writers (Zonaras, Procopius, etc.) who lived in the Byzantine empire. P. Cyc. Byzantine style (Arch.), a style of architecture developed in the Byzantine empire.

wer. -- Elf owl (Zoöl.), a small owl (Micrathene Whitneyi) of Southern California and Arizona.

A large tuberculated lizard (Heloderma suspectum) native of the dry plains of Arizona, New Mexico, etc. It is the only lizard known to have venomous teeth.

ed by the Quichua tribe. Inca dove (Zoöl.), a small dove (Scardafella inca), native of Arizona, Lower California, and Mexico.

A tribe of Indians inhabiting New Mexico and Arizona, allied to the Apaches. They are now largely engaged in agriculture.

Ozonation.

Situated around the vitellus, or between the vitellus and zona pellucida of an ovum.

which sailors imagine that it acts as a pilot to the shark. (b) The rudder fish (Seriola zonata). -- Pilot jack, a flag or signal hoisted by a vessel for a pilot. -- Pilot jacket, a pea jacket. -- Pilot nut (Bridge Building), a conical nut applied temporarily to the threaded end of a pin, to protect the thread and…

A beach; a strand; in the plains and deserts of Texas, New Mexico, and Arizona, a broad, level spot, on which subsequently becomes dry by evaporation. Bartlett.