floc 
(flŏk)
(flŏk)n.
A flocculent mass formed in a fluid through precipitation or aggregation of suspended particles.
[Short for FLOCCULUS.]
- aforethought
- aforetime
- a fortiori
- afoul of
- AFP
- Afr.
- afraid
- A-frame
- afreet
- afresh
- Africa
- African
- Africana
- African American
- African-American
- African American English
- African American Vernacular English
- African buffalo
- African clawed frog
- African collared dove
- African daisy
- Africander
- African elephant
- Africanism
- Africanist