age group 
noun
A number of people or things classed together as being of similar age: that attitude is widespread in my age group...
- That age group is the biggest category in the applications received by the Bureau.
- Nowadays it seems that everyone is at different stages of learning in the same age group.
- Perhaps my age group will be middle-aged for longer than any previous generation.
- pterotheca
- pterotic
- pteroyl
- pteroylglutamic acid
- pterygium
- pterygoidal
- pterygoid bone
- pterygoidean
- pterygoid fossa
- pterygoid muscle
- pterygoid plate
- pterygoid process
- pterygoid ridge
- pterygoid tubercle
- pterygomaxillary
- pterygopalatine
- pterygopharyngeal
- pterygopodium
- pterygoquadrate
- pterygospinous
- pterygostome
- pterygostomial
- pterygostomian
- Pterygota
- pterygote