block·head 
(blŏkhĕd′)
(blŏkhĕd′)n.
A person regarded as very stupid; a dolt.
- recognitory
- recognizable
- recognizably
- recognizance
- recognizant
- recognize
- recognizer
- recoil
- recoiler
- recoilless
- re-collect
- recollect
- re-collect
- recollect
- recollection
- recollective
- re-collect (oneself)
- recollect (oneself)
- re-collect oneself
- recollect oneself
- recombinant
- recombinant DNA
- recombinase
- recombination
- recombine