Also found in: Medical, Encyclopedia.
Related to antimere: bilaterally, macrophthalmia


A part or division in the body of a bilaterally or radially symmetric animal that corresponds to an opposite or similar part.

an′ti·mer′ic (-mĕr′ĭk) adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(Biology) a part or organ of a bilaterally or radially symmetrical organism that corresponds to a similar structure on the other side of the axis, such as the right or left limb of a four-legged animal. Also called: actinomere
antimeric adj
antimerism n
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
Mentioned in ?
References in periodicals archive ?
There are also instances where both participants determined that a particular humerus had a pair, but they disagreed on the antimere. It is interesting to note that Participants 4 and 5, who have the most CHR experience, disagreed on only 14 pairs, which was the lowest number of disagreed-upon pairs.
The EDL muscle from the right antimere was then weighed and its length (muscular belly) measured using a digital caliper (Digimess, Sao Paulo, Brazil).
Both adrenal glands (from right and left antimere) of SYT cavies were located in the abdominal cavity; craniomedially associated with the right and left cranial pole of kidneys, respectively.
Lingual arch widths were measured according to the method described by Howe9 which involves measuring at the lingual cervical region on the mesial-distal midpoint of a tooth to the corresponding point on its antimere. Buccal arch width measurements were carried out using the method described by Mcdoughall.
The genus is diagnosed in having an interrupted post-labial fold, broad isthmus, gill openings not extending ventrally onto undersurface of head, 14-16 branched pectoral-fin rays, lower lip not connected to the base of the maxillary barbel by a skin flap, sulcus between the lip and the barbel, homodont dentition, teeth pointed, coni-form in both jaws, premaxillary tooth patches contacting each other but not confluent, not extended posterolaterally, laterally blunt; dilator operculi muscle and levator opercula muscle contacting each other, broad anterior end of sternohyoideus muscle, its width almost equal to the width in the axilla of the pectoral fin, adductor pelvicalis superficialis muscle not contacting its antimere at the midline (Zhou et al.
We verified from two to 11 thymic lobes in the right antimere, besides that, the cases with five to eight lobes represented the largest portion of the sample, totaling 82.15% of the cases.
The most comprehensive listing of cumulative percentage ratios (CPRs) was published by Ho and Freer, who listed 13 CPRs that were categorized as six antimere ratios, five buccal segment ratios, and two additional ratios.
Talon cusps may be associated with other dental anomalies, especially in the permanent dentition, such as peg-shaped lateral incisors, impacted mesiodens and canines, odontoma, macrodontia, dens invaginatus, supernumerary teeth, shovel-shaped incisors, bifid cingulum, additional tubercle on incisors, exaggerated Carabelli cusps, and microdontia of antimere teeth [Al-Omari et al., 1999; Gungor et al., 2000; Segura-Egea et al., 2003].
The procedure also maximizes sample sizes; in cases where a given trait is observable for only one antimere but not the other, the observable side is counted as the maximum expression for that trait.
Intermolar and intercanine widths were measured on the dental casts with the help of digital calliper (Guo genR- made in China) with pointed measuring tips accurate to 0.1mm at the midpoint of cervical re- gion of each molar and canine on its lingual surface to a corresponding point on its antimere. The data was then analyzed on SPSS version 20.
The antimeres if present and did not require vital pulp therapy were recorded as negative control in order to rule out any assigned failure due to the different procedure to be a physiological resorption due to an early shedding of the antimere effecting the efficacy of the two procedures indirectly.