| holotrichous | Possessing cilia over the entire surface. Origin: holo-+ G. Thrix, hair (05 Mar 2000) |
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| holotype | <zoology> A single specimen designated or indicated the type specimen by the original author at the time of publication of the original description. (09 Jan 1998) |
| holozoic | Animal-like in mode of obtaining nourishment, lacking photosynthetic capacity; denoting certain protozoans, in distinction to others that are holophytic. Origin: holo-+ G. Zoon, animal (05 Mar 2000) |
| holster | A leather case for a pistol, carried by a horseman at the bow of his saddle. Origin: D. Holster; skin to AS. Heolstor den, cave, fr.helan to conceal, and to Icel. Hulstr case, Goth.hulistr covering, veil, huljan to cover. See Hele to cover, Hell, and cf. Housing, Houss. Source: Websters Dictionary (01 Mar 1998) |
| holt | 1. A piece of woodland; especially, a woody hill. "Every holt and heath." "She sent her voice though all the holt Before her, and the park." (Tennyson) 2. A deep hole in a river where there is protection for fish; also, a cover, a hole, or hiding place. " The fox has gone to holt." Origin: AS. Holt; akin to LG.holt, D.hout, G. Holz. Icel. Holt; cf Gael. & Ir.coill wood, Gr. Branch, shoot. Source: Websters Dictionary (01 Mar 1998) |
| Holt-Oram syndrome | <syndrome> An inherited type of heart disease where there are defects in the internal walls (septa) between the atrium and ventricle chambers of the heart. Holt-Oram syndrome is dominant (requires only one copy in the genome to be expressed) and is often associated with skeletal deformities such as abnormally short forearms or thumbs. Inheritance: autosomal dominant. (09 Oct 1997) |
| Holter | Norman, U.S. Biophysicist, 1914-1983. See: Holter monitor. (05 Mar 2000) |
| Holter monitoring | <cardiology, investigation> A test which measures the heart rhythm (ECG) over a 24 hour period of time while the patient records their symptoms and activities in a diary. A small portable ECG device is worn in a pouch around the neck. After the test is complete, a correlation is made between the symptoms (or activities) recorded and the ECG pattern that was obtained simultaneously. (27 Sep 1997) |
| Holthouse | Carsten, British surgeon, 1810-1901. See: Holthouse's hernia. (05 Mar 2000) |
| Holthouse's hernia | Inguinal hernia with extension of the loop of intestine along Poupart's ligament. (05 Mar 2000) |
| holtzman inkblot test | Personality evaluation based on the scoring of several variables as a result of the subject's responses in perceiving 47 inkblot plates. (12 Dec 1998) |
| holy | 1. Set apart to the service or worship of God; hallowed; sacred; reserved from profane or common use; holy vessels; a holy priesthood. "Holy rites and solemn feasts." 2. Spiritually whole or sound; of unimpaired innocence and virtue; free from sinful affections; pure in heart; godly; pious; irreproachable; guiltless; acceptable to God. "Now through her round of holy thought The Church our annual steps has brought." (Keble) Holy Alliance, the week before Easter, in which the passion of our Savior is commemorated. Holy writ, the sacred Scriptures. " Word of holy writ." . Origin: OE. Holi, hali, AS.halig, fr. Hael health, salvation, happiness, fr. Hal whole, well; akin to OS. Hlag, D. & G.heilig, OHG. Heilac, Dan. Hellig, Sw. Helig, Icel. Heilagr. See Whole, and cf. Halibut, Halidom, Hallow, Hollyhock. Source: Websters Dictionary (01 Mar 1998) |
| holy cross | The cross as the symbol of Christ's crucifixion. Congregation of the Holy Cross, a community of lay brothers and priests, in France and the United States, engaged chiefly in teaching and manual Labour. Originally called Brethren of St. Joseph. The Sisters of the Holy Cross engage in similar work. Holy-cross day, the fourteenth of September, observed as a church festival, in memory of the exaltation of our Savior's cross. Source: Websters Dictionary (01 Mar 1998) |
| Holzknecht | Guido, Austrian radiologist, 1872-1931. See: Holzknecht unit. (05 Mar 2000) |
| Holzknecht unit | An obsolete unit of X-ray dosage equal to one-fifth of the erythema dose. (05 Mar 2000) |