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Related to posteriorly: anteriorly


directed toward or situated at the back; opposite of anterior. Called also dorsal.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.


1. human anatomy denoting the back surface of the body. Often used to indicate the position of one structure relative to another, that is, nearer the back of the body. Synonym(s): dorsalis [TA], dorsal (2) , posticus
2. After, in relation to time or space.
3. veterinary anatomy limited to structures of the eye and ear. The word is otherwise ambiguous with respect to the anatomy of quadrupeds; caudal is preferred.
[L. comparative of posterus, following]
Farlex Partner Medical Dictionary © Farlex 2012


(pŏ-stîr′ē-ər, pō-)
1. Located behind a part or toward the rear of a structure.
2. Relating to the caudal end of the body in quadrupeds or the back of the body in humans and other primates.
3. Botany Next to or facing the main stem or axis.
4. Coming after in order; following.
5. Following in time; subsequent.
The buttocks.

pos·te′ri·or·ly adv.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.


noun A euphemism for the buttocks.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.


1. After, in relation to time or space.
2. human anatomy Denoting the back surface of the body. Often used to indicate the position of one structure relative to another, i.e., nearer the back of the body.
Synonym(s): dorsal (2) .
3. Near the tail or caudal end of certain embryos.
4. A substitute for caudal in quadrupeds; in veterinary anatomy, posterior is used only to denote some structures of the head.
[L. comparative of posterus, following]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012


Pertaining to the back of the body or a part. Dorsal. Compare ANTERIOR.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005


1. After, in relation to time or space.
2. human anatomy denoting the back surface of the body. Often used to indicate the position of one structure relative to another, i.e., nearer the back of the body.
Synonym(s): dorsal (2) .
[L. comparative of posterus, following]
Medical Dictionary for the Dental Professions © Farlex 2012

Patient discussion about posterior

Q. Is there any reason behind this? a bipolar woman is mostly misdiagnosed for depression… there any reason behind this?

A. freebrid12 is right, and there's another thing- depression is a very common diagnosis amongst women and bipolar is less common. therefore psychiatrist tend to diagnose depression more then bipolar disorder.

Q. I have been having chronic pain in sinus area and behind my eyes, been to ENT who states it is not infection? I wake up with the pain and go to sleep in severe pain. Its all day and all night. Dr insists that its migraine related and allergy related. I have chronic postnasal drainage. It started 4 months ago when I moved into our new house. The pain makes me extremely fatigue and dizzy at times. I have been referred to the eye doctor, a headache specialist and an allergy specialist. Just recently I have had a CT scan and an MRI, as well as xrays of my sinus. Nothing other than a deviated septum and possible allergies from an ENT has been diagnosed. In the mean time I am waiting for the days to come when I can get into see these specialist. Anyone out there have any of the same symptoms?? Need help here. Soooooo sick of the pain.

A. i have chronic sinusitis and can really relate to what you describe. learned to live with the pain...but still, i use various ways to reduce inflammation in my sinuses, i heat the place up before going to sleep, try to avoid eating or drinking cold stuff.
another thing i do is i heat water (80c) then add a special oil i bought in a chinese medicine store , about 5 drops, and inhale the fumes. nettle tea can do wonders too.

Q. info on arachnoid cyst in the right posterior fossa

A. Basically it's like a small sac filled with fluid. The problem is that the skull is a rigid closed space, which means that if there's something other than the brain, it'll occupy space, usually on expense of the brains' space. These kinds of problems are often referred to as "space occupying lesion".

It's usually congenital (i.e. develops during pregnancy), and even when it cause symptoms they develop slowly.

YOu can read more here (

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References in periodicals archive ?
The available data from earlier descriptions and illustrations suggest that the pygidium of Omegops tilabadensis differs from that of Omegops accipitrinus accipitrinus in having five (not six) pleural ribs and a relatively longer axis (90% against 75%) less strongly tapering posteriorly. The pygidium from the Famennian (Strunian) of the Mazraeh-e Kheradmand section in Central Iran illustrated by Wendt et al.
10b) short and roughly triangular in shape with outer corner pointed, surrounding the gonopore, with obscure sensillae at lateral sides of gonopore above paramere, posterior margin slightly serrated and expanded distal margin; parameres very short, laterally concave, anteriorly broad, posteriorly averted with rounded blunt terminal ends, may without terminal microseta.
Eastwood, "A new technique for stabilizing adolescent posteriorly displaced physeal medial clavicular fractures," Journal of Shoulder and Elbow Surgery, vol.
Additionally the presence of hemorrhage extending more laterally and posteriorly at the foramen magnum supports a subdural location.
Flap length is raised according to raw fibrotomy site, taking care not to extend the flap to circumvallate papilla posteriorly and sparing the tip of tongue anteriorly.
Venter black with two semi-circle parallel pale line enclosing black area, broken posteriorly going around spinnerets on black area appear four silvery white hairy patches reflecting on black area.
This type of motion also carries the lateral malleolus posteriorly, through reciprocal action the fibula head glides anteriorly and superiorly.
The amount of muscle released (5 mm to 10 mm) depends on the size of the osteophytes and degree of difficulty accessing the capsule posteriorly for release.