The word 'subclass' is correct and can be used in written English.
You can use it to refer to any subset of a larger class or group, or to the act of categorizing something into a subset. For example: "The school created a subclass of advanced math students who were able to take more advanced courses."
"The personal information which has been breached is the name, date of birth, title, position nationality, passport number, visa grant number and visa subclass held relating to 31 international leaders (ie prime ministers, presidents and their equivalents) attending the G20 leaders summit," the officer wrote.
However, they were "united" in opposition to the "healthy welfare card", which they believed would be "demeaning, invasive, unworkable and bureaucratic, creating an entire subclass of millions of people in the Australian community", read the statement.
Thus, once the Tool class exists, a subclass Power-tool that responds to such additional messages as "switch on" and "recharge" could be added.
To do so, they classify the various technologies responsible for an invention's novelty using an elaborate arrangement of codes.Each subject grouping in USPTO's scheme includes a major component called a class and a minor one called a subclass.
A class-subclass pair say, 136/206 for class 136 (batteries: thermoelectric and photoelectric) and subclass 206 (solar energy type)—is a unique code, and every patent is identified by at least one such code.
After investing for four years, successful applicants can apply for permanent residence.The visas are called "subclass 188" and "subclass 888".
Some authorities consider Selachii to be a class or subclass that contains all the modern sharks and rays; other authorities restrict the use of the name to an order of modern sharks and certain extinct ancestral forms.
In the moss subclass Polytrichidae, however, the tiny spores exit through a series of holes between the teeth and a membrane that closes much of the mouth; thus, any slight movement of the sporangium causes spores to shake out into the air.
Carpet moss, any of the plants of the genus Hypnum (subclass Bryidae), which form dense green mats in many habitats throughout the world, especially on decaying wood in moist areas.
Sharks, together with rays and skates, make up the subclass Elasmobranchii of the Chondrichthyes.
The mid-latitude C and D climates are given a second letter, f (no dry season), w (winter dry), or s (summer dry), and a third symbol (a, b, c, or d [the last subclass exists only for D climates]), indicating the warmth of the summer or the coldness of the winter.
