serra-, serri-, serr- (Latin: saw, saw-tooth).serra: 
In zoology, a sawlike organ or part, as the saw of a sawfish or of a sawfly.
 
serradella: 
A kind of clover with notched edged leaves.
 
Serranidae: 
A family of fishes probably because of their sawlike teeth.
 
serranoid: 
A reference to the Serranidae.
 
Serrasalmidae: 
Piranhas, silver dollars; family containing 65 species of small to medium-sized South American freshwater characiform teleost fishes. Piranhas are predators feeding on fishes and mammals, while others are herbivorous on fruits and seeds.
 
serrate, serration: 
1. With notches or projections like the teeth of a saw.  
2. To give something an edge that is notched like the teeth of a saw. serrated: 
With notches like the teeth of a saw.
 
serratic: 
Sawlike, especially in motion or sound.
 
Serricornia: 
A class of beetles with serrated antennae (having sawlike horns).
 
serriferous: 
Having serrated edges.
 
serriform: 
Sawlike, saw form.
 
serrulate: 
Finely toothed; having an edge with tiny notches like the teeth of a saw; "a little saw".
 
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