theca – מילון אנגלי-אנגלי
theca
n.
spore case, sac, capsule (Botany)
Theca
A
theca (plural
thecae) refers to a
sheath or a covering.
theca
Noun
1. a case or sheath especially a pollen sac or moss capsule
(synonym) sac
(hypernym) covering, natural covering, cover
2. outer sheath of the pupa of certain insects
(hypernym) sheath, case
theca
n.
briefcase
Theca
(n.)
The wall forming a calicle of a coral.
(n.)
The more or less cuplike calicle of a coral.
(n.)
The chitinous cup which protects the hydranths of certain hydroids.
(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.
Webster's Revised Unabridged Dictionary (1913), edited by Noah Porter.
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