The backbone of the CIDR is a nylon spine covered by a progesterone (1.38 g) impregnated silicone skin. During the seven days in the vagina the CIDR releases a relatively constant dosage of progesterone. Upon removal of the insert, progesterone is quickly eliminated.
variant. an organism or tissue that is different from the majority of the population but is still sufficiently similar to the common mode to be considered to be one of them, e.g. a variant strain of classical swine fever (hog cholera) virus. 1  Facebook.
Example Sentences for variant. The character's a variant on any of those that have been discovered so far. It may also represent merry, in its variant form murie, which is Mid. Variant spellings were made consistent when a predominant usage was found. Variant spellings and unusual punctuation have been retained.