Sentence Examples


  • The ventral and lateral parts of the anterior margin of the collar constitute the so-called operculum (op.), a structure which not only acts as a lower lip, but must be important in separating the food-current produced by the cilia of the tentacles from the external apertures of the collar-canals and gill-slits.
  • A pair of gill-slits (fig.
  • Yolk, and it is practically g.s., Gill-slit.
  • Sir David Gill (Monthly Notices, R.A.S.
  • "SIR DAVID GILL (1843-1914), British astronomer, was born in Aberdeenshire June 12 18 4 3 and educated at the university of Aberdeen.

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