length

length
Linear distance between two points.
- arch l. the amount of space required for the permanent teeth as measured from the mesial aspect of the first molar on one side to the mesial aspect of the first molar on the opposite side, as measured through the contact points along an imaginary line of the dental arch.
- available arch l. the amount of space available for the permanent teeth around the dental arch from first permanent molar to first permanent molar.
- crown-heel l. (CH, CHL) l. of an outstretched embryo or fetus from skull vertex to heel. See Streeter developmental horizon(s).
- crown-rump l. (CR, CRL) a measurement from the skull vertex to the midpoint between the apices of the buttocks of an embryo or fetus, that permits approximation of embryonic or fetal age.
- greatest l. measurement from the cranial to caudal end of the embryo prior to folding.
- required arch l. the sum of the mesiodistal widths of the permanent teeth from first permanent molar to first permanent molar.
- resting l. the l. at rest from which a muscle develops maximum isometric tension.
- spinal l. (SL) a measurement from the distal surface of the embryo where the plane passes through the developing eye (this is the cranial limit of the spinal cord) down to the rump.

* * *

(l) (length) an expression of the longest dimension of an object, or of the measurement between the two ends.

Medical dictionary. 2011.

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  • length — W2S2 [leŋθ] n ▬▬▬▬▬▬▬ 1¦(size)¦ 2¦(time)¦ 3¦(books/films etc)¦ 4 run/stretch/walk etc the (full) length of something 5 shoulder length/knee length etc 6 go to some/great/any lengths (to do something) 7 at (some/great etc) length 8 the length and… …   Dictionary of contemporary English

  • length — [ leŋθ ] noun *** 1. ) count or uncount a measurement of how long something is in size: Cut the cloth to the required length. This beautiful bird is small, with a total length of about three inches. The length of your swimming pool is not… …   Usage of the words and phrases in modern English

  • Length — is the long dimension of any object. The length of a thing is the distance between its ends, its linear extent as measured from end to end. This may be distinguished from height, which is vertical extent, and width or breadth, which are the… …   Wikipedia

  • Length — (l[e^]ngth), n. [OE. lengthe, AS. leng[eth], fr. lang, long, long; akin to D. lengte, Dan. l[ae]ngde, Sw. l[ a]ngd, Icel. lengd. See {Long}, a. ] 1. The longest, or longer, dimension of any object, in distinction from {breadth} or {width}; extent …   The Collaborative International Dictionary of English

  • length — [leŋkth, leŋth] n. [ME < OE lengthu < base of lang, LONG1 + TH1] 1. the measure of how long a thing is; measurement of anything from end to end; the greatest of the two or three dimensions of anything 2. extent in space; distance anything… …   English World dictionary

  • length — length; length·en; length·en·er; length·ful; length·i·ly; length·i·ness; length·ways; …   English syllables

  • length´i|ly — length|y «LEHNGK thee, LEHNG », adjective, length|i|er, length|i|est. 1. a) having unusually great length; long. b) (of speeches, a speaker, a writer, or the like) too long; long winded; tedious: »His directions were so le …   Useful english dictionary

  • length|y — «LEHNGK thee, LEHNG », adjective, length|i|er, length|i|est. 1. a) having unusually great length; long. b) (of speeches, a speaker, a writer, or the like) too long; long winded; tedious: »His directions were so le …   Useful english dictionary

  • length — ► NOUN 1) the measurement or extent of something from end to end; the greater or greatest of two or more dimensions of a body. 2) the amount of time occupied by something. 3) the quality of being long. 4) the full distance that a thing extends… …   English terms dictionary

  • -length — [leŋkth, leŋth] combining form forming adjectives of a (specified) length, of such length as to reach a (specified) point or part [full length] * * * …   Universalium

  • -length — [leŋkth, leŋth] combining form forming adjectives of a (specified) length, of such length as to reach a (specified) point or part [full length] …   English World dictionary

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