median

median /me·di·an/ (me´de-in)

1. situated in the median plane or in the midline of a body or structure.

2. the value of the middle item of a series when the items are arranged in numerical order. Symbol m.

---

me·di·an (md-n)

adj.

1. Relating to, located in, or extending toward the middle.

2. Of, relating to, or situated in or near the plane that divides a bilaterally symmetrical animal into right and left halves; mesial.

3. Of, relating to, or constituting the middle value in a distribution.

n.

1. A median point, plane, line, or part.

2. The middle value in a distribution, above and below which lie an equal number of values.

---

median (mē´dēn),

adj 1. pertaining to the middle.
n 2. a measure of central tendency attained by a calculation or count that separates all cases in a ranked distribution into halves. The median may be used as an average score.

median lethal dose,

n See dose, lethal, median.

median line,

n See line, median.

median mandibular point,

n See point, median mandibular.

median nerve,

n one of the terminal branches of the brachial plexus that extends along the radial portions of the forearm and the hand and supplies various muscles and the skin of these parts.

median retruded relation,

n See relation, centric.

median rhomboid glossitis,

n See atrophy, central papillary.

median sagittal plane,

n See plane, median sagittal.

---

median

1. situated in the median plane or in the midline of a body or structure.

2. the perpendicular line that divides the area of a frequency curve into two equal halves.

---

median calving date

the number of days between the first calving in the herd and the 50th percentile calving; an excellent measure of fertility status of seasonally calving herds; in dairy herds the target is 18 days.

median eminence

part of the hypophysis.

median nerve

see Table 14.

median nerve block

the anesthetic agent is injected on the medial aspect of the forelimb, just distal to the elbow. An area encircling most of the fetlock and pastern is desensitized.

median nerve injury

results in overextension and dropping of the carpus.