The phrase "a significant development of" is correct and usable in written English.
It can be used when discussing an important advancement or change related to a particular subject or field.
Example: "The research team announced a significant development of their new vaccine, which shows promising results in early trials."
Alternatives: "a major advancement in" or "an important progress in".
A significant development of online feminism has been the exploration of the intersecting and complex factors that contribute to a structurally and institutionally unequal society, with those factors including, but not limited to, gender.
A significant development of the mid-20th century was the Astrodome, built in 1965 in Houston, Texas; this was the first major fully roofed stadium.
A significant development of the early 1960s was a system known as Sketchpad, which enabled engineers to draw designs on a cathode-ray tube by using a light pen and a keyboard.
A significant development of the 1960s was the use of computers to prepare tapes and to drive and control typesetting and photocomposition at very high speeds (see computerized typesetting).
In the late 1960s there began a significant development of a new class of compressed-air devices: digital-logic pneumatic-control components, which can be used in various power and control systems.
It would be hyperbolic to call it a revolution, but it is a significant development: Of the 72 vendors taking part in this year's Art Dealers Association of America Art Show at the Park Avenue Armory, 40 have dedicated their booths to single artists.
The arrest of Storey is a significant development because of his membership of Sinn Féin and his close personal links to Adams.
And even if a vaccine injury "manifested" as autism in only one case, isn't that still a significant development worthy of informing the public?
So, while the DOJ suit is a significant development, the process of holding those responsible for the biggest environmental disaster in US history is really just beginning.
"I love you so much, I love you so much," Margaret says to Enrique, as if it were "a significant development, a furthering of her feeling for him that she had only recently understood".
"It's a significant development," says Marc Rotenberg, head of the Electronic Privacy Information Center, a policy group in Washington.
