epiphyseal كردوسي ، مشاشي

Actually i searched for this term and I found this result:
The epiphyseal plate (or epiphysial plate, physis, or growth plate) is the hyaline cartilage plate in the metaphyses of children and adolescents.
this is from wikipedia: http://en.wikipedia.org/wiki/Epiphyseal_plate

I found also this website:
http://www.sendbad.net/health2/index.php?badre=11

Hope this may be relevant to the context and helps you.

according to your context in the next question it can be (two commando groups),
Now the word (cados) refer to a number of people or trainers, it is like a faction, it is only a specific number of people who are being trained or graduated.

the last letter in the word is refer to it being dual, I mean two.

Hope this can help.

كردوس جمعها كراديس
Kardoos , plural Karadees

is a military unit, used in old islamic military formation and Arab modern armies (Iraqi Army as far as i know) borrowed the term.
ومن الوحدات العسكرية الأخرى
لواء ، سرية ، فوج ، فصيل ، رهط
I am not sure where it should be located , I think after سرية or after لواء
رهط is about 10 persons
فصيل is about 30 person
فوج is about 90 person
والسرية من ثلاث افواج

see this search
http://www.google.com/search?hl=en&q=كردوس كراديس &btnG=Goog...