Crown Ethers Definition

Crown Ethers:

Compounds of the general formula R-O-R arranged in a ring or crown formation.

Synonym: cyclic ethers, crown compounds.

Terms Related to Crown Ethers

Crown-Rump Length
In utero measurement corresponding to the sitting height (crown to rump) of the fetus. Length is considered a more accurate criterion of the age of …
Methyl Ethers
A group of compounds that contain the general formula R-OCH3.
Crown
A prosthetic restoration that reproduces the entire surface anatomy of the visible natural crown of a tooth. It may be partial (covering three or more …
Methylphenyl Ethers
A group of compounds that are structurally related to methoxybenzene and contain the general formula R-C7H70.
Tooth Crown
The upper part of the tooth, which joins the lower part of the tooth (TOOTH ROOT) at the cervix (TOOTH CERVIX) at a line called …
Crown Lengthening
Technique combining controlled eruptive tooth movement and incision of the supracrestal gingival attachment to allow for proper restoration of a destroyed or damaged crown of …

Additional tags: crown ether definition, crown ethers in medicin