| OT | 1. <abbreviation> Occupational therapist or therapy; Koch's old tuberculin. 2. <prefix> The ear. See: auri-. Origin: G. Ous (05 Mar 2000) |
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| Ota's nevus | Pigmentation of the conjunctiva and skin around the eye, usually unilateral; seen especially in women of Oriental races. Synonym: Ota's nevus. (05 Mar 2000) |
| Ota, Masao | <person> Japanese dermatopathologist, 1885-1945. See: Ota's nevus. (05 Mar 2000) |
| otaheite apple | <botany> The fruit of a Polynesian anacardiaceous tree (Spondias dulcis), also called vi-apple. It is rather larger than an apple, and the rind has a flavor of turpentine, but the flesh is said to taste like pineapples. A West Indian name for a myrtaceous tree (Jambosa Malaccensis) which bears crimson berries. Origin: So named from Otaheite, or Tahiti, one of the Society Islands. Source: Websters Dictionary (01 Mar 1998) |
| otalgia | <medicine> Pain in the ear; earache. Origin: NL, fr. Gr., the ear + pain: cf. F. Otalgie. Source: Websters Dictionary (01 Mar 1998) |
| otalgic | <medicine> Of or pertaining to otalgia. A remedy for otalgia. Source: Websters Dictionary (01 Mar 1998) |
| otary | Origin: Gr. Large-eared, fr, ear: cf. F. Otarie. <zoology> Any eared seal. Source: Websters Dictionary (01 Mar 1998) |
| OTC | Over-the-counter. (12 Dec 1998) |
| OTF | <microscopy> The relationship between the image produced by an optical instrument and the amplitude and phase of a periodic specimen, measured at various spatial frequencies. The optical transfer function curve, which shows how well contrast is maintained for finer specimen details, is a complex function, of which the real term gives the ratio of amplitudes, and the imaginary term the phase relationships. When the brightness of the periodic specimen varies as a sine wave, the modulus or absolute value of the optical transfer function becomes the modulation transfer function, when the brightness varies as a square wave, the modulation transfer function is known as a contrast transfer function. Acronym: OTF (26 Mar 1998) |
| Othello syndrome | <syndrome> A delusional belief in the infidelity of one's spouse. Origin: Othello, Shakespearian char. (05 Mar 2000) |
| otheoscope | <instrument, physics> An instrument for exhibiting the repulsive action produced by light or heat in an exhausted vessel; a modification of the radoimeter. Origin: Gr. To push + -scope. Source: Websters Dictionary (01 Mar 1998) |
| other-directed | Pertaining to a person readily influenced by the attitudes of others. (05 Mar 2000) |
| othman | See Ottoman. Source: Websters Dictionary (01 Mar 1998) |
| otic | Relating to the ear. Origin: G. Otikos, fr. Ous, ear (05 Mar 2000) |
| otic abscess | A cerebral abscess usually involving the temporal lobe or cerebellar hemisphere, due to extension of suppuration of the middle ear. Synonym: otogenous abscess. (05 Mar 2000) |