acicular


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acicular

 [ah-sik´u-ler]
needle-shaped.

ac·ic·u·lar

(ă-sik'yū-lar),
Needle shaped or needle pointed; applied particularly to leaves and crystals.
[L. acicular, small pin]

acicular

(ə-sĭk′yə-lər)
adj.
Having the shape of a needle: acicular crystals.

acicular

adjective An obsolete term for what would now be termed needle-shaped or speculate.

ac·ic·u·lar

(ă-sik'yū-lar)
Shaped like a needle.
[L. acicular, small pin]
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References in periodicals archive ?
fascicularis colonies was only marginally different from that of septa from shallow field-collected colonies, Acicular crystals of septa sampled from colonies collected from the shallow reef fiat appeared as solid, broad crystals tightly packed together (Fig.
Prickly blade points probably exapted to the extremely hard and prickly acicular leaves typical of the southern terminal clade in relation to browsing and grazing by these newcomers, which appeared in combination with increased aridity.
Smaller sprays of hemimorphite, associated with acicular microcrystals of pyromorphite and chrysocolla after malachite were sometimes found in rubble in the stope.
As ageing temperature reduced and duration of seasoning at 900 [degrees]C increased, partial dissolution and coagulation of the acicular phases in the diffusion zone occurred, which caused reduction of microhardness at the interphase boundary.
These four crystal forms were nuno, acicular, lamellar, and fusiform.
Specifically, the WM at lower heat input had an increased amount of acicular ferrite, which also increased the potential of the matrix.
Acicular particles induce transcrystallinity around them.
When the flux containing TiO2 is used in welding the weld is alloyed by titanium and acicular ferrite which improves mechanical characteristics of the joint [4].
In these large-cabinet specimens, pale yellow-brown spherical aggregates of radiating acicular crystals rest, singly and in clusters, on basalt matrix.
Cooling the sample in a medium with a high cooling intensity (water), and prolonged holding at austenization temperatures were found to be unsuitable treatments because of the resulting coarseness of the acicular martensite and deterioration of the samples' mechanical properties.
Martensite structure between carbide lines is of non-acicular nature because of microsegregation, and in the areas of accumulation of carbides acicular martensite with low etching capacity is present.