clavulan.
/ˈklavjuːlə/ 1. One of the knobbed ciliated setæ or bristles found on the exterior of spatangoid sea urchins.
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the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > phylum Echinodermata > [noun] > subphylum Eleutherozoa > class Echinoidea > order Spatangoidea > parts of member of > bristle on exterior
clavula1884
1884 A. Sedgwick & F. G. Heathcote tr. C. Claus Elem. Text-bk. Zool.: Protozoa to Insecta 296 The fascioles or semitæ..upon which..knobbed bristles with active cilia (clavulæ) are distributed.
1888 G. Rolleston & W. H. Jackson Forms Animal Life (ed. 2) 558 Clavulæ, found only in Spatangideæ.
1962 D. Nichols Echinoderms viii. 97 This current is largely created by special ciliated spines, clavulae, in the interstices of the marginal plates on the arm-sides.
2. A spicule occurring in certain hexactinellid sponges in the shape of a toothed rod pointed at one end and thickened or knobbed at the other.
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the world > animals > invertebrates > subkingdom Parazoa > phylum Porifera > class Hexactinellida > [noun] > spicule
clavula1887
stauractin1905
1887 Encycl. Brit. XXII. 417/2 The clavula, a tylotate form with a toothed margin to the head.
This entry has not yet been fully updated (first published 1933; most recently modified version published online December 2021).
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n.1884- to have the mucky end of the stick
- to have the munchies
- to have the neck
- to have the neck to
- to have the nerve to
- to have the odds of
- to have the opposition
- to have the overhand
- to have the oversight of
- to have the overthrow
- to have the pencil put on one
- to have the pip
- to have the place
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- to have the price
- to have the pricker
- to have the pull of
- to have the pull on
- to have the pull over
- to have the qualities of one's defects
- to have the rag on
- to have the rearward
- to have the refusal
- to have the refusal of
- to have the right