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Definition of Theca
1. Noun. A case or sheath especially a pollen sac or moss capsule.
2. Noun. Outer sheath of the pupa of certain insects.
Definition of Theca
1. n. A sheath; a case; as, the theca, or cell, of an anther; the theca, or spore case, of a fungus; the theca of the spinal cord.
Definition of Theca
1. a protective anatomical covering [n -CAE] : THECAL, THECATE [adj]
Medical Definition of Theca
1.
Origin: L, fr. Gr. A case to put anything in. See Tick a cover.
1. A sheath; a case; as, the theca, or cell, of an anther; the theca, or spore case, of a fungus; the theca of the spinal cord.
2.