period

(redirected from Last Menstrual Period)
Also found in: Dictionary, Thesaurus, Medical, Legal, Acronyms.
Related to Last Menstrual Period: menstrual cycle

period

The period (also known as a full stop, especially in British English) is a punctuation mark ( . ) primarily used to indicate the end of a sentence. It appears as a single dot on the bottom line of the text, and it comes immediately after the last word of the sentence without a space.
Continue reading...

period:

see punctuationpunctuation
[Lat.,=point], the use of special signs in writing to clarify how words are used; the term also refers to the signs themselves. In every language, besides the sounds of the words that are strung together there are other features, such as tone, accent, and pauses,
..... Click the link for more information.
.

period,

in physics: see harmonic motionharmonic motion,
regular vibration in which the acceleration of the vibrating object is directly proportional to the displacement of the object from its equilibrium position but oppositely directed.
..... Click the link for more information.
; wavewave,
in physics, the transfer of energy by the regular vibration, or oscillatory motion, either of some material medium or by the variation in magnitude of the field vectors of an electromagnetic field (see electromagnetic radiation).
..... Click the link for more information.
.

period,

unit of time on the geologic timescalegeologic timescale,
a chronological scale of earth's history used to measure the relative or absolute age of any part of geologic time. Of the numerous timescales, the most common is based on geologic time units, which divide time into eras, periods, and epochs.
..... Click the link for more information.
. Periods are shorter than an era and longer than an epoch. Periods are of variable length, generally lasting tens of millions of years, with characteristic fossils found preserved in the sediments deposited during the period. It is also used to designate a characteristic of geologic time, such as the glacial period.

period

The time interval between two successive and similar phases of a regularly occurring event. The period of rotation or of revolution of a planet, etc., is the time to complete one rotation on its axis or one revolution around its primary. The period of a binary star is the time observed for the companion to orbit the primary. The period of a regular intrinsic variable star or an eclipsing binary is the time between two successive maxima or minima on the light curve.

Period

 

in music, a structural unit that expresses a complete or relatively complete musical idea. Usually, a period consists of two parts (phrases), each made up of four or eight measures that differ in their cadences (a half cadence in the first phrase and a perfect cadence in the second).


Period

 

(postroenie), in music, a term that is applicable to any section of a musical form that is structurally distinct from adjacent sections. Usually the term is applied to sections intervening between the main elements of a musical form—for example, sections larger than a phrase but smaller than a sentence. Often, a period is designated by the number of measures it includes (two-measure, four-measure and seven-measure periods, for example). The point of demarcation, or boundary between periods, is called a caesura. Usually the larger the periods, the more important is the caesura dividing them.


Period

 

a punctuation mark that indicates the end of a declarative sentence. When used in such abbreviations as “i.e., ” the period is not a punctuation mark.

period

[′pir·ē·əd]
(astronomy)
The average time interval for a variable star to complete a cycle of its variations.
(chemistry)
A family of elements with consecutive atomic numbers in the periodic table and with closely related properties; for example, chromium through copper.
(geology)
A unit of geologic time constituting a subdivision of an era; the fundamental unit of the standard geologic time scale.
(mathematics)
A number T such that ƒ(x + T) = ƒ(x) for all x, where ƒ(x) is a specified function of a real or complex variable.
The period of an element a of a group G is the smallest positive integer n such that a n is the identity element; if there is no such integer, a is said to be of infinite period.
(nucleonics)
The time required for exponentially rising or falling neutron flux in a nuclear reactor to change by a factor of e (2.71828).
(physics)
The duration of a single repetition of a cyclic phenomenon.

period

1. a nontechnical name for an occurrence of menstruation
2. Geology a unit of geological time during which a system of rocks is formed
3. a division of time, esp of the academic day
4. Physics Maths
a. the time taken to complete one cycle of a regularly recurring phenomenon; the reciprocal of frequency.
b. an interval in which the values of a periodic function follow a certain pattern that is duplicated over successive intervals
5. Astronomy
a. the time required by a body to make one complete rotation on its axis
b. the time interval between two successive maxima or minima of light variation of a variable star
6. Chem one of the horizontal rows of elements in the periodic table. Each period starts with an alkali metal and ends with a rare gas
7. a complete sentence, esp a complex one with several clauses
8. Music a passage or division of a piece of music, usually consisting of two or more contrasting or complementary musical phrases and ending on a cadence
9. (in classical prosody) a unit consisting of two or more cola
References in periodicals archive ?
(20) In France, which permits medical abortion up to 49 days from the last menstrual period, 56% of eligible early abortions involve mifepristone, but these procedures account for only 11% of all abortions.
Graph 1 shows the accuracy rates of the last menstrual period and scan dates as estimates of the actual date of delivery, An error of zero days means that the scan or the last menstrual period predicted the actual date of delivery exactly and an error of 14 days means that the scan or the last menstrual period estimate is 14 days earlier or later than the actual date of delivery.
The CDC says that "gestational age," the measurement it uses in reports, is "based on the clinician's estimate" in most states it studies and from a woman's last menstrual period in a couple of others.
Hartmann, "Comparison of gestational age at birth based on last menstrual period and ultrasound during the first trimester," Paediatric and Perinatal Epidemiology, vol.
A 22-year-old gravida two para one woman, six-week pregnant by dating from her last menstrual period, presented to a private maternal health facility for termination of her pregnancy via dilation and suction curettage.
[6,7] A study by Taipale and Hiilesma [7] showed that ultrasound is more accurate than last menstrual period date in dating, and when it was used as the prime determinant of gestational age the number of post-term pregnancies reduced.
Female coworker asked their menstrual history and date of last menstrual period. Accordingly, different phases of menstrual cycle were calculated, and subject was given next two dates in which they have to again visit the lab for recording of GSR.
The clinic will offer abortion care up to the full legal limit of 21.6 weeks since last menstrual period."
I think you should start taking 400mcg of folic acid every day from now until the end of the 12th week of your pregnancy, counting from your last menstrual period.
Exposure to interferon-beta (brand names Rebif, Avonex, Betaseron, and Extavia) was defined as injection of the drug at any time after the last menstrual period.
Following the patients' first treatment in the emergency department, the following factors were recorded: the time of presentation to the hospital, age, profession, educational status, marital status, number of children, place of residence, manner of presentation to the medical facility, patient history, history of smoking and alcohol or substance abuse, cause of suicide, method of suicide, active ingredient used and its dose, lethal danger, duration of follow-up, date of the last menstrual period, menstrual data (age of menarche, cycle regularity, frequency, and duration), and use of contraception.
* women more than 5 years past the last menstrual period with a lumbar spine or hip BMD T-score between -1 and -2.5 plus one other risk factor for osteoporosis (n = 1,454)