Sentence Examples


  • Besides this there is usually a living conducting tissue, sometimes differentiated as leptom, forming a mantle round the hydrom, and bounded externally by a more or less well-differentiated endodermis, abutting on an irregularly cylindrical lacuna; the latter separates the central conducting cylinder from the cortex of the seta, which, like the cortex of the gametophyte stem, is usually differentiated into an outer thick-walled stereom and an inner starchy parenchyma.
  • Peristefar lacuna; end.
  • In addition to the median lacuna there are two lateral lacunae, one upon each side.
  • The median lacuna no longer exists, but is represented by a dorsal and ventral sinus.
  • Lacuna, foot with two posterior appendages, marine, entirely aquatic. Cremnoconchus, entirely aerial, Indian.

How would you define lacuna? Add your definition here.

comments powered by Disqus