| vocal process of arytenoid cartilage | The lower end of the anterior margin of the arytenoid cartilage to which the vocal cord is attached. Synonym: processus vocalis cartilaginis arytenoidei, vocal process. (05 Mar 2000) |
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| vocal resonance | The voice sounds as heard on auscultation of the chest. (05 Mar 2000) |
| vocal shelf | One of Ferrein's cords; the sharp edge of a fold of mucous membrane overlying the vocal ligament and stretching along either wall of the larynx from the angle between the laminae of the thyroid cartilage to the vocal process of the arytenoid cartilage; the vocal folds are the agents concerned in voice production. Synonym: plica vocalis, chorda vocalis, labium vocale, true vocal cord, vocal cord, vocal shelf. (05 Mar 2000) |
| vocalis | <anatomy, muscle> Origin, depression between the two laminae of thyroid cartilage; insertion, portions of vocal process of arytenoid; action, shortens and relaxes vocal cords; nerve supply, recurrent laryngeal; a number of the deeper and finer fibres of the thyroaryteroid muscle attached directly to the outer side of the true vocal cord. Synonym: musculus vocalis, musculus thyroarytenoideus internus, vocal muscle. (05 Mar 2000) |
| vocalization, animal | Vocal sounds used in animal communication. (12 Dec 1998) |
| vocalize | 1. To form into voice; to make vocal or sonant; to give intonation or resonance to. "It is one thing to give an impulse to breath alone, another thing to vocalize that breath." (Holder) 2. To practice singing on the vowel sounds. Origin: Cf. F. Vocaliser. Source: Websters Dictionary (01 Mar 1998) |
| vocation | 1. A call; a summons; a citation; especially, a designation or appointment to a particular state, business, or profession. "What can be urged for them who not having the vocation of poverty to scribble, out of mere wantonness make themselves ridiculous?" (Dryden) 2. Destined or appropriate employment; calling; occupation; trade; business; profession. "He would think his service greatly rewarded, if he might obtain by that means to live in the sight of his prince, and yet practice his own chosen vocation." (Sir. P. Sidney) 3. A calling by the will of God. Specifically: The bestowment of God's distinguishing grace upon a person or nation, by which that person or nation is put in the way of salvation; as, the vocation of the Jews under the old dispensation, and of the Gentiles under the gospel. "The golden chain of vocation, election, and justification." A call to special religious work, as to the ministry. "Every member of the same [the Church], in his vocation and ministry." (Bk. Of Com. Prayer) Origin: L. Vocatio a bidding, invitation, fr. Vocare to call, fr. Vox, vocis, voice: cf. F. Vocation. See Vocal. Source: Websters Dictionary (01 Mar 1998) |
| vocational education | Education for specific trades or occupations. (12 Dec 1998) |
| vocational guidance | Systematic efforts to assist individuals in selecting an occupation or suitable employment on the basis of aptitude, education, etc. (12 Dec 1998) |
| vociferation | The act of vociferating; violent outcry; vehement utterance of the voice. "Violent gesture and vociferation naturally shake the hearts of the ignorant." (Spectator) "Plaintive strains succeeding the vociferations of emotion or of pain." (Byron) Origin: L. Vociferatio: cf. F. Vociferation. Source: Websters Dictionary (01 Mar 1998) |
| VOD | <haematology, oncology> A disease that sometimes occurs following high-dose chemotherapy or radiation, in which the blood vessels that carry blood through the liver become swollen and clogged. Acronym: VOD (12 Jan 1998) |
| vodanium | <chemistry> A supposed element, afterward found to be a mixture of several metals, as copper, iron, lead, nickel, etc. Source: Websters Dictionary (01 Mar 1998) |
| Vogel's law | When a phenotype may be transmitted by various modes of mendelian inheritance, the dominant will have the least deleterious phenotype, the recessive the most, and the X-linked intermediate between the two. (05 Mar 2000) |
| Voges, Otto | <person> German physician, *1867. See: Voges-Proskauer reaction. (05 Mar 2000) |
| Voges-Proskauer reaction | A chemical reaction used in testing for the production of acetyl methyl carbinol by various bacteria; potassium hydroxide is added to a 24-hour culture in a suitable medium and thoroughly mixed; the treated culture is exposed to air and is observed at intervals of 2, 12, and 24 hours; a positive reaction consists of the development of an eosin-like pink colour, due to the production of acetylmethylcarbinol, which in the presence of alkali and oxygen is oxidised to diacetyl. (05 Mar 2000) |