nectar

definition: 
A sugary fluid secreted within flowers to encourage pollination by insects and other animals
sentence: 
Flowers offering both nectar and pollen were, as expected, pollinated by diverse small insects, including small bees The mistletoe usually ceases to produce nectar within the flower once it is opened, thereby encouraging birds to concentrate on opening new flowers rather than revisiting old ones.
difficulty: 
easy
toefl frequency: 
2
toefl classification: