theco-, thec-, the-, theca-, theci-, -thecial, -thecae, -thecas, -thecium, -theca, -thec, -thecal, -thecial, -thecae, -thecas, -thecs, -tecs

(Greek > Latin: case, capsule, sheath, container, receptacle [also: a placing, a setting, a putting]; "a place where" something is kept)

endothecium
The inner tissue of an anther or a moss capsule.
eucalyptol (s) (noun), eucalyptols (pl)
A colorless oily liquid from eucalyptus plants: Eucalyptol is used in pharmaceuticals, perfumes, and food flavorings.
exothecium
galeopithecus (s) (noun), galeopithecuses (pl)
A small mammal; such as, bats, which appear to glide or fly through the air while hunting insects: While touring the rainforest, the guide pointed out several galeopithecuses to the tourists, noting that they were important for the ecology by keeping the insect population under control.
glyptotheca
A building or room devoted to works of sculpture.
gnathotheca
The horney covering of the lower mandible or beak of a bird.
hierotheca
A receptacle for sacred objects.
hydrotheca
hypothec (s) (noun), hypothecs (pl)
1. Security that is given to a creditor as a legal promise to repay a loan: A hypothec uses either lands or goods as assurance that a debt will be repaid, even though the property that is contracted remains in possession of the debtor.
2. Etymology: from Late Latin hypotheca, "deposit"; from Greek hupotheke, "a deposit, a pledge, a mortgage".
intrathecal
1. Within the spinal canal or within a sheath.
2. Within a sheath, for example, cerebrospinal fluid that is contained within the dura mater. It also refers to drugs administered into the cerebrospinal fluid bathing the spinal cord and brain.
3. Within either the subarachnoid or the subdural space.

An intrathecal injection (often simply called "intrathecal") refers to an injection into the spinal canal (intrathecal space surrounding the spinal cord), as in a spinal anaesthesia or in chemotherapy. This route is also used for some infections, particularly post-neurosurgical infections.

nemathecium
ootheca (s), oothecae (pl)
A type of egg mass made by any member of a variety of species (usually insects or mollusks).

A gravid (pregnant) female praying mantis will produce a large foam mass, called an ootheca. This ootheca can contain up to 300 eggs, all protected in the foam sack. These oothecae can take up to five months to hatch, some species hatching in shorter intervals. Hatching can take up to five weeks for all of the nymphs to fully emerge.

oothecae
oothecal
perithecium (s), perithecia (pl)
1. An organ in certain fungi and lichens, surrounding and enveloping the masses of fructification.
2. In some kinds of fungus, a flask-shaped fruiting body that contains spores.