aciculum

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aciculum

(əˈsɪkjʊləm)

n, pl -lums or -la (-lə)

(Zoology) a needle-like bristle that provides internal support for the appendages (chaetae) of some polychaete worms

[C19: New Latin; see acicula]

Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

References in periodicals archive

Diagnosis: There is a subdistal row of small denticles on the aciculum and the pharynx has 6 teeth and 2 lateral plates.

There were 3 aciculae in anterior parapodia and 2 in mid-body parapodia; a needle-like aciculum accompanied these thicker acicula in all setigers.

Some intertidal and shallow water polychaetes of the Caribbean coast of Costa Rica

music-mad W2 (2) Caesium musicale Calcium calumbic aciculum Californium

Elementary transadditions

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