Definition of acicular in English:

acicular

adjective əˈsɪkjʊləəˈsɪkjələr

technical

(chiefly of crystals) needle-shaped.
Example sentencesExamples
- Sukow suggested that the coloration may be due to aggregates of acicular crystals of copper minerals scattered or concentrated throughout the datolite nodule.
- All of the acicular crystals are late Neoproterozoic
- The acicular crystals are sometimes intergrown or twinned, causing a distortion that results in seemingly single crystals with relatively fat bases tapering to pointed terminations.
- Epididymite was known several years ago from a few small (millimeter-sized) crystals that occurred on some specimens and also as inclusions of white acicular crystals in smoky quartz.
- Groutite is observed as small, lustrous black, acicular crystals to 1/8 inch long that occur directly on the quartz or chalcedony.
- The majority of the zircon crystals from the three samples are light yellow, well-faceted, acicular crystals with few to no signs of mechanical abrasion.
- Some wire silver from the White Raven and Black Jack mines of the Ward district, Boulder County, were coated with acicular crystals of primary acanthite.
- Eckel reported the presence of acicular pyrite crystals.
- Wollastonite or calcium metasilicate is a naturally occurring industrial mineral that has an acicular structure.
- As the temperature of its formation becomes higher the acicular nature becomes less accentuated, the needles increasing in size
- They often have grown around pre-existing acicular goethite crystals in random orientation, clearly demonstrating the quartz to be of a later growth.
- In the Monte Calvario area, the fluoro-edenite mineralization process yielded mainly prismatic, evenly sized acicular crystals.
- It occurs as smooth compact clusters of dark blue-green acicular crystals, typically in association with hemimorphite and occasionally with conichalcite and agardite in all the mines.
- Further collecting on the mine dump during fall 2002 produced additional cubic and octahedral cuprite microcrystals, along with beautiful sprays of tiny acicular malachite crystals.
- Small acicular rutile crystals are found in cavities in various quarries in the Carrara, Tuscany district, Italy.
- Dark green, acicular crystals of actinolite can be collected from this quarry, which is smaller and older than the Metronite quarry.
- It occurs as bright blue, radiating sprays or spheres of acicular crystals.
- It occurs as sky-blue acicular crystals associated with hydrozincite and hemimorphite at the Billy Springs mine near Mount Fitton, and at the Mount Malvern mine, Clarendon, South Australia.
- A few quartz specimens have included yellow to dull orange acicular crystals, identified by quantitative analysis as aegirine.
- The largest amphibole crystals are embedded in the rock matrix, whereas the smaller acicular crystals line the hollows.
Synonyms
sharp, spear-like, needle-like, spear-shaped, v-shaped, tapering, tapered, cone-shaped, conic, conical, acute, sharp-cornered, wedge-shaped, sharp-edged, edged, jagged, spiky, spiked, barbed

Origin

Early 18th century: from late Latin acicula 'small needle' (diminutive of acus) + -ar¹.

Definition of acicular in US English:

acicular

adjectiveəˈsɪkjələrəˈsikyələr

technical

(chiefly of crystals) needle-shaped.
Example sentencesExamples
- In the Monte Calvario area, the fluoro-edenite mineralization process yielded mainly prismatic, evenly sized acicular crystals.
- Further collecting on the mine dump during fall 2002 produced additional cubic and octahedral cuprite microcrystals, along with beautiful sprays of tiny acicular malachite crystals.
- All of the acicular crystals are late Neoproterozoic
- It occurs as sky-blue acicular crystals associated with hydrozincite and hemimorphite at the Billy Springs mine near Mount Fitton, and at the Mount Malvern mine, Clarendon, South Australia.
- The acicular crystals are sometimes intergrown or twinned, causing a distortion that results in seemingly single crystals with relatively fat bases tapering to pointed terminations.
- It occurs as smooth compact clusters of dark blue-green acicular crystals, typically in association with hemimorphite and occasionally with conichalcite and agardite in all the mines.
- Small acicular rutile crystals are found in cavities in various quarries in the Carrara, Tuscany district, Italy.
- They often have grown around pre-existing acicular goethite crystals in random orientation, clearly demonstrating the quartz to be of a later growth.
- Groutite is observed as small, lustrous black, acicular crystals to 1/8 inch long that occur directly on the quartz or chalcedony.
- Eckel reported the presence of acicular pyrite crystals.
- As the temperature of its formation becomes higher the acicular nature becomes less accentuated, the needles increasing in size
- Wollastonite or calcium metasilicate is a naturally occurring industrial mineral that has an acicular structure.
- The largest amphibole crystals are embedded in the rock matrix, whereas the smaller acicular crystals line the hollows.
- Epididymite was known several years ago from a few small (millimeter-sized) crystals that occurred on some specimens and also as inclusions of white acicular crystals in smoky quartz.
- Sukow suggested that the coloration may be due to aggregates of acicular crystals of copper minerals scattered or concentrated throughout the datolite nodule.
- It occurs as bright blue, radiating sprays or spheres of acicular crystals.
- A few quartz specimens have included yellow to dull orange acicular crystals, identified by quantitative analysis as aegirine.
- The majority of the zircon crystals from the three samples are light yellow, well-faceted, acicular crystals with few to no signs of mechanical abrasion.
- Some wire silver from the White Raven and Black Jack mines of the Ward district, Boulder County, were coated with acicular crystals of primary acanthite.
- Dark green, acicular crystals of actinolite can be collected from this quarry, which is smaller and older than the Metronite quarry.
Synonyms
sharp, spear-like, needle-like, spear-shaped, v-shaped, tapering, tapered, cone-shaped, conic, conical, acute, sharp-cornered, wedge-shaped, sharp-edged, edged, jagged, spiky, spiked, barbed

Origin

Early 18th century: from late Latin acicula ‘small needle’ (diminutive of acus) + -ar.

单词	acicular
释义	Definition of acicular in English: acicular adjective əˈsɪkjʊləəˈsɪkjələr technical (chiefly of crystals) needle-shaped. Example sentencesExamples Sukow suggested that the coloration may be due to aggregates of acicular crystals of copper minerals scattered or concentrated throughout the datolite nodule. All of the acicular crystals are late Neoproterozoic The acicular crystals are sometimes intergrown or twinned, causing a distortion that results in seemingly single crystals with relatively fat bases tapering to pointed terminations. Epididymite was known several years ago from a few small (millimeter-sized) crystals that occurred on some specimens and also as inclusions of white acicular crystals in smoky quartz. Groutite is observed as small, lustrous black, acicular crystals to 1/8 inch long that occur directly on the quartz or chalcedony. The majority of the zircon crystals from the three samples are light yellow, well-faceted, acicular crystals with few to no signs of mechanical abrasion. Some wire silver from the White Raven and Black Jack mines of the Ward district, Boulder County, were coated with acicular crystals of primary acanthite. Eckel reported the presence of acicular pyrite crystals. Wollastonite or calcium metasilicate is a naturally occurring industrial mineral that has an acicular structure. As the temperature of its formation becomes higher the acicular nature becomes less accentuated, the needles increasing in size They often have grown around pre-existing acicular goethite crystals in random orientation, clearly demonstrating the quartz to be of a later growth. In the Monte Calvario area, the fluoro-edenite mineralization process yielded mainly prismatic, evenly sized acicular crystals. It occurs as smooth compact clusters of dark blue-green acicular crystals, typically in association with hemimorphite and occasionally with conichalcite and agardite in all the mines. Further collecting on the mine dump during fall 2002 produced additional cubic and octahedral cuprite microcrystals, along with beautiful sprays of tiny acicular malachite crystals. Small acicular rutile crystals are found in cavities in various quarries in the Carrara, Tuscany district, Italy. Dark green, acicular crystals of actinolite can be collected from this quarry, which is smaller and older than the Metronite quarry. It occurs as bright blue, radiating sprays or spheres of acicular crystals. It occurs as sky-blue acicular crystals associated with hydrozincite and hemimorphite at the Billy Springs mine near Mount Fitton, and at the Mount Malvern mine, Clarendon, South Australia. A few quartz specimens have included yellow to dull orange acicular crystals, identified by quantitative analysis as aegirine. The largest amphibole crystals are embedded in the rock matrix, whereas the smaller acicular crystals line the hollows. Synonyms sharp, spear-like, needle-like, spear-shaped, v-shaped, tapering, tapered, cone-shaped, conic, conical, acute, sharp-cornered, wedge-shaped, sharp-edged, edged, jagged, spiky, spiked, barbed Origin Early 18th century: from late Latin acicula 'small needle' (diminutive of acus) + -ar¹. Definition of acicular in US English: acicular adjectiveəˈsɪkjələrəˈsikyələr technical (chiefly of crystals) needle-shaped. Example sentencesExamples In the Monte Calvario area, the fluoro-edenite mineralization process yielded mainly prismatic, evenly sized acicular crystals. Further collecting on the mine dump during fall 2002 produced additional cubic and octahedral cuprite microcrystals, along with beautiful sprays of tiny acicular malachite crystals. All of the acicular crystals are late Neoproterozoic It occurs as sky-blue acicular crystals associated with hydrozincite and hemimorphite at the Billy Springs mine near Mount Fitton, and at the Mount Malvern mine, Clarendon, South Australia. The acicular crystals are sometimes intergrown or twinned, causing a distortion that results in seemingly single crystals with relatively fat bases tapering to pointed terminations. It occurs as smooth compact clusters of dark blue-green acicular crystals, typically in association with hemimorphite and occasionally with conichalcite and agardite in all the mines. Small acicular rutile crystals are found in cavities in various quarries in the Carrara, Tuscany district, Italy. They often have grown around pre-existing acicular goethite crystals in random orientation, clearly demonstrating the quartz to be of a later growth. Groutite is observed as small, lustrous black, acicular crystals to 1/8 inch long that occur directly on the quartz or chalcedony. Eckel reported the presence of acicular pyrite crystals. As the temperature of its formation becomes higher the acicular nature becomes less accentuated, the needles increasing in size Wollastonite or calcium metasilicate is a naturally occurring industrial mineral that has an acicular structure. The largest amphibole crystals are embedded in the rock matrix, whereas the smaller acicular crystals line the hollows. Epididymite was known several years ago from a few small (millimeter-sized) crystals that occurred on some specimens and also as inclusions of white acicular crystals in smoky quartz. Sukow suggested that the coloration may be due to aggregates of acicular crystals of copper minerals scattered or concentrated throughout the datolite nodule. It occurs as bright blue, radiating sprays or spheres of acicular crystals. A few quartz specimens have included yellow to dull orange acicular crystals, identified by quantitative analysis as aegirine. The majority of the zircon crystals from the three samples are light yellow, well-faceted, acicular crystals with few to no signs of mechanical abrasion. Some wire silver from the White Raven and Black Jack mines of the Ward district, Boulder County, were coated with acicular crystals of primary acanthite. Dark green, acicular crystals of actinolite can be collected from this quarry, which is smaller and older than the Metronite quarry. Synonyms sharp, spear-like, needle-like, spear-shaped, v-shaped, tapering, tapered, cone-shaped, conic, conical, acute, sharp-cornered, wedge-shaped, sharp-edged, edged, jagged, spiky, spiked, barbed Origin Early 18th century: from late Latin acicula ‘small needle’ (diminutive of acus) + -ar.
随便看	perispermic perispheric perispherical perisplenic perisplenitis perispomenon perisporangium perispore perissodactyl Perissodactyla perissodactyls perissological perissology peristalith peristalsis peristaltic peristaltic peristaltically peristaltically peristaltic pump peristerite peristeronic peristomal peristomate peristome