acicula

acicula

[uh-sik-yuh-luh]
noun, plural aciculae [uh-sik-yuh-lee] .
1.
a needlelike part; spine, bristle, or needlelike crystal.
2.
a plural of aciculum.

Origin:
1875–80; < Neo-Latin, Late Latin, alteration of acucula ornamental pin, equivalent to Latin acu-, stem of acus needle (cf. acute) + -cula -cule1

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aciculum

[uh-sik-yuh-luhm] .
noun, plural aciculums, acicula [uh-sik-yuh-luh] .
1.
an acicula.
2.
Zoology. one of the slender, sharp stylets embedded in the parapodia of certain annelid worms, as the polychaetes.

Origin:
alteration of acicula

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Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
acicula (əˈsɪkjʊlə)
 
n , pl -lae
a needle-shaped part, such as a spine, prickle, or crystal
 
[C19: New Latin, diminutive of acus needle]
 
a'cicular
 
adj

aciculum (əˈsɪkjʊləm)
 
n , pl -lums, -la
a needle-like bristle that provides internal support for the appendages (chaetae) of some polychaete worms
 
[C19: New Latin; see acicula]

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