Ichthyopsida
(||Ich`thy*op"si*da) n. pl. [NL., fr. Gr. 'ichqy`s, -y`os, a fish + appearance.] (Zoöl.) A
grand division of the Vertebrata, including the Amphibia and Fishes.
Ichthyopterygia
(||Ich`thy*op`te*ryg"i*a) n. pl. [NL. See Ichthyopterygium.] (Paleon.) See Ichthyosauria.
Ichthyopterygium
(||Ich`thy*op`te*ryg"i*um) n. [NL., fr. Gr. 'ichqy`s, -y`os, a fish + a fin.] (Anat.) The
typical limb, or lateral fin, of fishes.
Ichthyornis
(||Ich`thy*or"nis) n. [NL., fr. Gr. 'ichqy`s, -y`os, a fish + bird.] (Paleon.) An extinct genus
of toothed birds found in the American Cretaceous formation. It is remarkable for having biconcave
vertebræ, and sharp, conical teeth set in sockets. Its wings were well developed. It is the type of the order
Odontotormæ.
Ichthyosaur
(Ich"thy*o*saur) n. [Cf. F. ichthyosaure.] (Paleon.) One of the Ichthyosaura.
Ichthyosauria
(||Ich`thy*o*sau"ri*a) n. pl. [NL. See Ichthyosaurus.] (Paleon.) An extinct order of marine
reptiles, including Ichthyosaurus and allied forms; — called also Ichthyopterygia. They have not been
found later than the Cretaceous period.
Ichthyosaurian
(Ich`thy*o*sau"ri*an) a. (Paleon.) Of or pertaining to the Ichthyosauria. — n. One of
the Ichthyosauria.
Ichthyosaurus
(||Ich`thy*o*sau"rus) n.; pl. Ichthyosauri [NL., fr. Gr. 'ichqy`s, -y`os, a fish + say^ros a
lizard.] (Paleon.) An extinct genus of marine reptiles; - - so named from their short, biconcave vertebræ,
resembling those of fishes. Several species, varying in length from ten to thirty feet, are known from the
Liassic, Oölitic, and Cretaceous formations.
Ichthyosis
(||Ich`thy*o"sis) n. [NL., fr. Gr. 'ichqy`s fish.] (Med.) A disease in which the skin is thick,
rough, and scaly; — called also fishskin. — Ich`thy*ot"ic a.
Ichthyotomist
(Ich`thy*ot"o*mist) n. One skilled in ichthyotomy.
Ichthyotomy
(Ich`thy*ot"o*my) n. [Gr. 'ichqy`s, -y`os, a fish + to cut.] The anatomy or dissection of
fishes. [R.]
Ichthys
(||Ich"thys) n. [NL., fr. Gr. 'ichqy`s a fish.] Same as Ichthus.
Icicle
(I"ci*cle) n. [OE. isikel, AS. isgicel; is ice + gicel icicle; akin to Icel. jökull; cf. Gael. eigh ice, Ir.
aigh.] A pendent, and usually conical, mass of ice, formed by freezing of dripping water; as, the icicles
on the eaves of a house.
Icicled
(I"ci*cled) a. Having icicles attached.
Icily
(I"ci*ly) adv. In an icy manner; coldly.
Faultily faultless, icily regular, splendidly null,
Dead perfection, no more.
Tennyson. Iciness
(I"ci*ness) n. The state or quality of being icy or very cold; frigidity.
Icing
(I"cing) n. A coating or covering resembling ice, as of sugar and milk or white of egg; frosting.
Ickle
(Ic"kle) n. [OE. ikil. See Icicle.] An icicle. [Prov. Eng.]
Icon
(I"con) n. [L., fr. Gr. e'ikw`n.] An image or representation; a portrait or pretended portrait.
Netherlands whose names and icons are published.
Hakewill.
