| ichthyophobia | <psychology> Morbid fear of fish. Origin: ichthyo-+ G. Phobos, fear (05 Mar 2000) |
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| ichthyophthalmite | See Apophyllite. Origin: Gr, a fish + eye. Source: Websters Dictionary (01 Mar 1998) |
| ichthyophthira | <zoology> A division of copepod crustaceans, including numerous species parasitic on fishes. Origin: NL, fr. Gr, a fish + a louse. Source: Websters Dictionary (01 Mar 1998) |
| ichthyopsida | <zoology> A grand division of the Vertebrata, including the Amphibia and Fishes. Origin: NL, fr. Gr, a fish + appearance. Source: Websters Dictionary (01 Mar 1998) |
| ichthyopterygia | <paleontology> See Ichthyosauria. Origin: NL. See Ichthyopterygium. Source: Websters Dictionary (01 Mar 1998) |
| ichthyopterygium | <anatomy> The typical limb, or lateral fin, of fishes. Origin: NL, fr. Gr, a fish + a fin. Source: Websters Dictionary (01 Mar 1998) |
| ichthyornis | <paleontology> An extinct genus of toothed birds found in the American Cretaceous formation. It is remarkable for having biconcave vertebrae, and sharp, conical teeth set in sockets. Its wings were well developed. It is the type of the order Odontotormae. Origin: NL, fr. Gr, a fish + bird. Source: Websters Dictionary (01 Mar 1998) |
| ichthyosarcotoxin | Toxic substance found in the flesh or organs of fishes. Origin: ichthyo-+ G. Sarx, flesh, + toxikon, poison (05 Mar 2000) |
| ichthyosarcotoxism | Poisoning caused by the toxic substance (ichthyosarcotoxin) in the flesh or organs of fish. Origin: ichthyo-+ G. Sarx, flesh, + toxikon, poison (05 Mar 2000) |
| ichthyosaur | <paleontology> One of the Ichthyosaura. Origin: Cf. F. Ichthyosaure. Source: Websters Dictionary (01 Mar 1998) |
| ichthyosauria | <paleontology> An extinct order of marine reptiles, including Ichthyosaurus and allied forms; called also Ichthyopterygia. They have not been found later than the Cretaceous period. Origin: NL. See Ichthyosaurus. Source: Websters Dictionary (01 Mar 1998) |
| ichthyosaurian | <paleontology> Of or pertaining to the Ichthyosauria. One of the Ichthyosauria. Source: Websters Dictionary (01 Mar 1998) |
| ichthyosaurus | Origin: NL, fr. Gr. 'ichqys, -yos, a fish + say^ros a lizard. <paleontology> An extinct genus of marine reptiles; so named from their short, biconcave vertebrae, resembling those of fishes. Several species, varying in length from ten to thirty feet, are known from the Liassic, Oolitic, and Cretaceous formations. Source: Websters Dictionary (01 Mar 1998) |
| ichthyosiform erythroderma | A genodermatosis characterised by diffuse chronic erythema and scale formation which may be separated into bullous and nonbullous forms. Synonym: ichthyosiform erythroderma, ichthyosis spinosa, keratoma malignum. (05 Mar 2000) |
| ichthyosiform erythroderma, congenital | Designation for several severe forms of ichthyosis, present at birth, that are characterised by hyperkeratotic scaling. Infants may be born encased in a collodion membrane which begins shedding within 24 hours. This is followed in about two weeks by persistent generalised scaling. The forms include bullous (hyperkeratosis, epidermolytic), non-bullous (ichthyosis, lamellar), wet type, and dry type. (12 Dec 1998) |