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unicostate

[ yoo-ni-kos-teyt, -kaw-steyt ]
/ ˌyu nɪˈkɒs teɪt, -ˈkɔ steɪt /

adjective

having only one costa, rib, or ridge.
Botany. (of a leaf) having only one primary or prominent rib, the midrib.

Nearby words

  1. unicolour,
  2. unicorn,
  3. unicorn plant,
  4. unicorn uterus,
  5. unicornous,
  6. unicuspid,
  7. unicycle,
  8. unidentifiable,
  9. unidentified,
  10. unidentified flying object

Origin of unicostate

First recorded in 1840–50; uni- + costate
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for unicostate

unicostate

/ (ˌjuːnɪˈkɒsteɪt) /

adjective

biology having only one rib or riblike partunicostate leaves
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