Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Medical
  • Scrabble
  • Spanish Central
  • Learner's Dictionary

theca

play
noun the·ca \ˈthē-kə\

Definition of theca

plural the·cae play \ˈthē-ˌsē, -ˌkē\

  1. :  an enveloping sheath or case of an animal or animal part

the·cal play \ˈthē-kəl\ adjective


Origin of theca

New Latin, from Greek thēkē case — more at tick


First Known Use: circa 1666


Medical Dictionary

theca

play
noun the·ca \ˈthē-kə\

Medical Definition of theca

plural the·cae \ˈthē-ˌsē, -ˌkē\play play

  1. :  an enveloping case or sheath (as the theca folliculi) of an anatomical part




Learn More about theca

  1. Medical Dictionary: Definition of "theca" Britannica.com: Encyclopedia article about "theca"


Seen and Heard

What made you want to look up theca? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

February 12, 2016

of, relating to, or suggestive of marble

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

image33683556

How much does a batman (the Turkish unit of measurement) weigh?

196.5 pounds 100 pounds 2.2 pounds 16.96 pounds
Name That Thing

10 quick questions: hear them, spell them, and see how your skills compare to the crowd.

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ