See Also: propidene(medicine)

Tychonic (iou) and propidene (medicine)


Tychonic (iou)



Tychonic adjective. L17.
[from Tychon- stem of the Latinized form of the name of Tycho (Danish Tyge) Brahe (see below) + -IC.]
Of or pertaining to the Danish astronomer Tycho Brahe (1546-1601); designating or pertaining to his theory that the planets revolve around the sun, which revolves around the earth.

propidene (medicine)


propidene
<chemistry> The unsymmetrical hypothetical hydrocarbon radical, CH3.CH2.CH, analogous to ethylidene, and regarded as the type of certain Derivatives of propane.

Synonym: propylidene.

Origin: Propyl + ethylidene.

Source: Websters Dictionary