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Definitions from WordNet

Definitions from the Web

Term: theca

Noun:

1. The hard outer covering or shell of an organism, such as an insect or crustacean.

Example sentence: The theca of the hermit crab provides protection and support.

2. Anatomy

a) A case or sheath enclosing a particular organ or structure in the body.

Example sentence: The theca surrounding the spinal cord helps to protect it from injury.

b) A protective structure that surrounds a specific part, such as the theca folliculi, which encloses the ovarian follicle.

Example sentence: The theca folliculi plays a vital role in the development and release of the oocyte.

3. Botany

A sac or capsule enclosing the spores of certain plants.

Example sentence: The ferns release spores from the theca, allowing for reproduction.

Related products on Amazon:

Insect Theca

Anatomy Sheath

Botany Sac