adj.
Function: transitive verb
Inflected Form: fos · tered ; fos · ter · ing \ -t( ə -)ri ŋ \
Date: 12th century
1 : to give parental care to : NURTURE
2 : to promote the growth or development of : ENCOURAGE < foster ed the college in its early years>
– fos · ter · er \ -t ə r- ə r \ noun