Also found in: Encyclopedia.


a.1.Having unequal sides; unsymmetrical; unequal-sided.
2.(Zool.) Having the two ends unequal, as in the clam, quahaug, and most lamellibranch shells.
Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
References in periodicals archive ?
Ascospores ellipsoid-fusoid slightly inequilateral with inconspicuous short germ slit in one end and indehiscent perispore .....A.
The shell is elongated and inequilateral. The hinge line is straight and is slightly shorter than the maximum shell length.
Rocks in the case of an inequilateral stressed state, which often occurs in the process of metamorphic transformations, acquire an oriented structure (Brace, 1960).
Concha alargada, rectangular, inequilateral con los umbos cerca del extremo anterior cuyo borde es redondeado, parte posterior con bordes dorsal y ventral casi paralelos, el borde posterior inclinado dorsalmente es irregular por las proyecciones de las costillas; con 17 costillas radiales con interespacios amplios, las anteriores son finamente noduladas, las del disco oblicuamente aplanadas, y las posteriores mas gruesas, redondeadas y escamosas; charnela con dos dientes cardinales y dos laterales en cada valva.
rhombeus fontainianus (Figure 1b and c) is subcircular, equivalve and inequilateral. The valves are flattened, and the umbo (u) is prosogyrate with a worn periostracum in most adults, owing to the action of abiotic factors.
Their valves are hard, subtriangulate, and inequilateral; their color ranges from black to light brown or yellowish.
to lanceolate, inequilateral leaflets that are clearly denticulate in
0.5-1.0 mm, ovate, brown, opaque, dispersed, marginally entire; blades 12-21 x 4-7 cm, lanceolate, chartaceous to spongiosus, basically truncate equilateral to inequilateral, apically acute to acuminate; costal scales 1-2 x 0.51 mm, ovate, brown, dispersed, marginally entire to erose; blade scales 0.5-1 x 0.2-0.4 mm, ovate, light brown, dispersed, basically erose to ciliate; veins few evident, simple to 1-forked, 1-2 mm apart, diverging at 60-70[degrees] from costa; hydathodes very evident, black; fertile fronds 25-36 cm long; stipes 2/3-3/4 the frond length; fertile blades 9-12 x 2.3-2.7 cm, lanceolate to lanceolate-oblong, basically truncate to cordiform, apically acute; interporangial scales ca.
Hysterothecia gregarious, superficial, straight or flexuous, 0.57-2.28 x 0.19-0.38 mm; pseudoparaphyses hyaline, abundant, filiform, longer than asci; asci cylindrical-claviform, 4-5(-6-8)-spored, 100-105 x 18-20 [micro]m; ascospores brown, muriform, not parenchymatic, with 6-8 transverse and 1 longitudinal septa, broadly ellipsoid, tapered to the lower part, constricted at the median septum, slightly inequilateral, 22-28 x 6-10 [micro]m.
Shell oval, large, equivalve and inequilateral. Dorsal and ventral margins convex.