| first meiotic division | The first of two consecutive divisions of the nucleus of an eukaryotic cell during the process of meiosis. It includes the following stages of meiosis: prophase I, metaphase I, anaphase I, and telophase I. (09 Oct 1997) |
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| first molar | First permanent molar, sixth permanent tooth or fourth deciduous tooth in the maxilla and mandible on either side of the midsagittal plane of the head following the arch form. (05 Mar 2000) |
| first parallel pelvic plane | The upper opening of the true pelvis, bounded anteriorly by the pubic symphysis and the pubic crest on either side, laterally by the iliopectineal lines, and posteriorly by the promontory of the sacrum. Synonym: apertura pelvis superior, aditus pelvis, first parallel pelvic plane, pelvic brim, pelvic inlet, pelvic plane of inlet, plane of inlet. (05 Mar 2000) |
| first rank symptoms | Those symptom's that, when present, indicate that the diagnosis of schizophrenia is likely, provided that organic or toxic aetiology is ruled out: delusion of control, thought broadcasting, thought withdrawal, thought insertion, hearing one's thoughts spoken aloud, auditory hallucinations that comment on one's behaviour, and auditory hallucinations in which two voices carry on a conversation. Synonym: first rank symptoms, schneiderian first rank symptoms. (05 Mar 2000) |
| first stage of labour | The part of labour when the cervix dilates fully (to 10 centimeters). The first stage of labour is also called the stage of dilatation. (12 Dec 1998) |
| first temporal convolution | A longitudinal gyrus on the lateral surface of the temporal lobe between the lateral (sylvian) fissure and the superior temporal sulcus. Synonym: gyrus temporalis superior, first temporal convolution, superior temporal convolution. (05 Mar 2000) |
| first visceral cleft | <anatomy> The cleft between the hyoid and mandibular arches of the embryo; the external auditory meatus is developed from its dorsal portion. Synonym: first visceral cleft. (05 Mar 2000) |
| first-class | Of the best class; of the highest rank; in the first division; of the best quality; first-rate; as, a first-class telescope. First-class car or First-class railway carriage, any passenger car of the highest regular class, and intended for passengers who pay the highest regular rate; distinguished from a second-class car. Source: Websters Dictionary (01 Mar 1998) |
| first-order kinetics | A term describing the reaction rate of a chemical reaction in which the rate is proportional to the concentration (in moles) of only one of the reactants. Such a reaction might have an equation like rate = k[A], where k is the reaction rate constant and [A] is the concentration of a reactant A. (09 Oct 1997) |
| first-order reaction | A reaction the rate of which is proportional to the concentration of the single substance undergoing change; radioactive decay is a first-order process, defined by the equation -(dN/dt)=kN, where N is the number of atoms subject to decay (reaction), t is time, and k is the first-order decay (reaction) constant, i.e., the fraction of all atoms decaying per unit of time. See: decay constant, order. (05 Mar 2000) |
| first-set rejection | Allograft transplantation between two organisms not previously sensitised to the graft tissue. Necrosis of the graft usually occurs within 10 days of transplantation. (05 Mar 2000) |
| firstling | Firstborn. "All the firstling males." (Deut. Xv. 19) 1. The first produce or offspring; said of animals, especially domestic animals; as, the firstlings of his flock. 2. The thing first thought or done. "The very firstlings of my heart shall be The firstlings of my hand." (Shak) Origin: First + -ling. Source: Websters Dictionary (01 Mar 1998) |
| firstpass | Connected with the first barrier the medicine has to pass, where it is filtered. (18 Nov 1997) |
| firth | <geography> An arm of the sea; a frith. Origin: Scot. See Frith. Source: Websters Dictionary (01 Mar 1998) |
| first law of thermodynamics |
Energy can neither be created nor destroyed.
출처: highered.mcgraw-hill.com/sites/0072480823/student_...
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| first law of thermodynamics |
The total internal energy U of an isolated system is constant. If a thermodynamic system is not isolated, its internal energy may change because of two distinguishable macroscopic processes: working (a force exerted through a distance) and heating (energy exchange by virtue of a temperature difference between the system and its surroundings). The first law may be written where Q is the rate of heating and W is the rate of working on the system. ...
출처: amsglossary.allenpress.com/glossary/browse
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| fire |
to bake a piece in a kiln.
출처: library.thinkquest.org/6275/Glossary.html
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| first line therapy |
The first course of treatment used against a disease.
출처: www.cdc.gov/cancer/lung/glossary.htm
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| first law of thermodynamics |
A statement of the relationship between the internal energy of a system and the heat and work transferred from the system to its surroundings, or vice versa: E sys = q + w.
출처: xenon.che.ilstu.edu/genchemhelphomepage/glossary/f...
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| FIR | naval radar that controls the delivery of fire on a military target |
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| FIR | naval weaponry consisting of a system for controlling the delivery of fire on a military target |
| FIR | the department of local government responsible for preventing and extinguishing fires |
| FIR | a fire-resistant door that can be closed to stop the spread of a fire |
| FIR | an exercise intended to train people in duties and escape procedures to be followed in case of fire |
| FIR | any of various large trucks that carry firemen and equipment to the site of a fire |
| FIR | a stairway (often on the outside of a building) that permits emergency exit in the case of fire |
| FIR | a manually operated device for extinguishing small fires |
| FIR | a member of a fire department who tries to extinguish fires |
| FIR | fire iron consisting of a metal rod with a handle |
| FIR | a large hose that carries water from a fire hydrant to the site of the fire |
| FIR | an upright hydrant for drawing water to use in fighting a fire |