noun Botany.

an inflorescence in which the flowers are arranged in a seeming whorl, consisting in fact of a pair of opposite axillary, usually sessile, cymes, as in many mints.

Nearby words

  1. vertical union,
  2. vertically,
  3. vertically challenged,
  4. vertices,
  5. verticil,
  6. verticillate,
  7. verticillium wilt,
  8. vertiginous,
  9. vertigo,
  10. vertisol

Origin of verticillaster

1825–35; < Latin verticill(us) verticil + -aster1

Related formsver·ti·cil·las·trate [vur-tuh-si-las-treyt, -trit] /ˈvɜr tə sɪˌlæs treɪt, -trɪt/, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for verticillaster

British Dictionary definitions for verticillaster



botany an inflorescence, such as that of the dead-nettle, that resembles a whorl but consists of two crowded cymes on either side of the stem
Derived Formsverticillastrate (ˌvɜːtɪsɪˈlæsˌtreɪt, -trɪt), adjective

Word Origin for verticillaster

C19: from New Latin; see verticil, -aster

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012