| aphagia | Inability to eat. Origin: G. A-priv. + phago, to eat (05 Mar 2000) |
|---|---|
| aphakia | <ophthalmology> The loss or absence of the lens of an eye. (09 Oct 1997) |
| aphakia, postcataract | Absence of the crystalline lens resulting from cataract extraction. (12 Dec 1998) |
| aphakial | <medicine> Pertaining to aphakia; as, aphakial eyes. Source: Websters Dictionary (01 Mar 1998) |
| aphakic eye | The eye from which the lens is absent. (05 Mar 2000) |
| aphakic glaucoma | Glaucoma following cataract removal. (05 Mar 2000) |
| aphalangia | Congenital absence of a digit, or more specifically, absence of one or more of the long bones (phalanges) of a finger or toe. Origin: G. A-priv. + phalanx (05 Mar 2000) |
| aphaniptera | <zoology> A group of wingless insects, of which the flea in the type. See Flea. Origin: NL, fr. Gr. Invisible (priv. + to appear) + a wing. Source: Websters Dictionary (01 Mar 1998) |
| aphanipterous | <zoology> Of or pertaining to the Aphaniptera. Source: Websters Dictionary (01 Mar 1998) |
| aphanisis | Loss of sexuality. Origin: G. Aphaneia, disappearance (05 Mar 2000) |
| aphanite | <chemical> A very compact, dark-coloured ock, consisting of hornblende, or pyroxene, and feldspar, but neither of them in perceptible grains. Origin: Gr. Invisible; priv. + to appear. Source: Websters Dictionary (01 Mar 1998) |
| aphanitic | <chemical> Resembling aphanite; having a very fine-grained structure. Source: Websters Dictionary (01 Mar 1998) |
| aphasia | <clinical sign, neurology> A defect or loss of the ability to speak or write, loss of ability to understand spoken or written language, due to injury or disease of the brain centres. Origin: Gr. Phasis = speech (16 Dec 1997) |
| aphasia, broca | Loss of ability to speak and write caused by damage to the motor association cortex in the frontal lobe (broca's area). The deficit in language production ranges from almost complete muteness to a slowed, deliberate speech constructed from very simple grammatical structures. Patients use only key words: for "the large gray cat" the patient with broca's aphasia may say "gray cat". (kandel et al., principles of neural science, 3d ed, p847) (12 Dec 1998) |
| aphasia, conduction | A type of fluent aphasia in which there is normal comprehension of spoken language but words are repeated incorrectly. It results from a lesion of the arcuate fasciculus connecting broca's and wernicke's areas. Like patients with wernicke's aphasia (aphasia, wernicke), patients with conduction aphasia are fluent but have many paraphasic errors (incorrect words or sounds substituted for correct ones). The degree of fluency is less than that in wernicke's aphasia, but comprehension is good. (12 Dec 1998) |