theca
(noun) outer sheath of the pupa of certain insects
theca, sac
(noun) a case or sheath especially a pollen sac or moss capsule
Source: WordNet® 3.1
theca (plural thecas or thecae)
(biology) Any external case or sheath.
(botany) The pollen-producing organ usually found in pairs and forming an anther.
(medicine) The twin layers of cells surrounding the basal lamina of an ovarian follicle.
(microbiology, planktology) The membrane complex enveloping the cells of certain plankton including diatoms and dinoflagellates.
(coral science) The calcareous wall of a corallite, the exoskeleton of a coral polyp.
(Christianity) A case for the corporal cloth used in the Eucharist.
• 'tache, Tache, TachĂ©, Teach, Tâche, chate, cheat, he-cat, tache, teach
Source: Wiktionary
The"ca, n.; pl. Thecæ. Etym: [L., fr. Gr. 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. (Zoöl.) (a) The chitinous cup which protects the hydranths of certain hydroids. (b) The more or less cuplike calicle of a coral. (c) The wall forming a calicle of a coral.
Source: Webster’s Unabridged Dictionary 1913 Edition
5 May 2025
(adjective) not developed, improved, exploited or used; “vast unexploited (or undeveloped) natural resources”; “taxes on undeveloped lots are low”
The earliest credible evidence of coffee-drinking as the modern beverage appeared in modern-day Yemen. In the middle of the 15th century in Sufi shrines where coffee seeds were first roasted and brewed for drinking. The Yemenis procured the coffee beans from the Ethiopian Highlands.
