acicular


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acicular

[ə′sik·yə·lər]
(science and technology)
Needlelike; slender and pointed.
References in periodicals archive ?
When sampled from the natural reef environment, septa possessed acicular crystals that remained highly ordered and extended to the outer edge of the growing septa (Fig.
Acicular neuropodial ligule wider than long, blunt, globose, inferior one similar in length but narrow; three acicula (Fig.
It has been suggested that higher temperatures and increased aridity have exerted selective pressure on leaf morphology, resulting in the evolution of narrow, involute, acicular leaves from ancestors with wider leaves (Ezcurra et al., 1997).
In our recent work [13], it was demonstrated that acicular PCC can be used as inorganic whisker in a typically melt spinning process in order to improve the mechanical properties.
The penetration is deeper and the microstructure constituent, such as acicular ferrite, is controlled at the required heat input without compromising the strength of the welded joint.
It occurs in cavities and on fracture surfaces in a variety of crystal habits ranging from blocky, near equant crystals (to 1 mm), to flat blades or tablets and lustrous, transparent, dark green radiating acicular sprays (to 3 mm).
Leaves 10 to 14 in number, rosulate, subdensely arranged and forming a distinct rosette before anthesis and afterwards, sheaths inconspicuous, blades narrowly triangular-lanceolate, 9-11 cm long, 0.9-1.5 cm wide at base, ca 2 mm thick near the base, thick-coriaceous mainly toward the base, arcuate to nearly spreading, slightly channeled mainly toward the apex with a semicircular curve in cross-section to nearly flat, greenish-bronze colored, abaxially densely and coarsely white-lepidote, nerved, adaxially densely white lepidote at base only and glabrous toward the apex, apex long attenuate-caudate, margins subdensely to laxly spinose, spines narrowly triangular, acicular and pale castaneous toward the apex, 1.5-2 mm long, ca.
The posterior half of the body is The posterior half of the body is lightly expanded pointed Sacciform Fusiform With 8 thoracic segments With 8 thoracic segments With 3 abdominal segments Abdomen with seven to nine setigers Neuropodial uncini of setigers Inferior thoracic notosetae are 2-6 are acicular and have a bayonet setae, situated as main tooth crowned by shorter simple row roughly parallel teeth series and posterior to superior Neuropodial uncini of setigers 7 notosetae.
Carbide phases are represented by three modifications: equiaxial (Ti, Nb, W)C one, acicular tungsten-base [Me.sub.6]C carbides, and [Me.sub.23][C.sub.6] carbides.
Company produces varying grades of untreated and surface-modified wollastonite, a naturally occurring, white, nonmetallic mineral with an acicular structure.
It is said to be ideal for characterization of spherical, irregular shape, acicular and fiber particles, as well as agglomerations, mixtures, extreme concentrations and volumes, and concentration measurement.
The alpha phase appeared to be fine needle shaped (acicular alpha).