Homo hei·del·ber·gen·sis 
(hī′dəl-bûr-gĕnsĭs)
(hī′dəl-bûr-gĕnsĭs)n.
A species of extinct humans known from Pleistocene fossil remains found throughout Europe and Africa, and possibly in Asia, dating from about 600,000 to 200,000 years ago. Fossil finds known as Heidelberg man, Rhodesian man, and Steinheim man are examples of H. heidelbergensis.
[New Latin Homō heidelbergēnsis, species name : Latin homō, man + New Latin heidelbergēnsis, of Heidelberg (a fossil jawbone of the species having been found near the city in 1907 ).]
- knock around
- knock around (or about)
- knock back
- knock cold
- knock dead
- knock down
- knockdown
- knockdown-dragout
- knocker
- knock for a loop
- knock it off
- knock-knee
- knock-kneed
- knock off
- knockoff
- knock out
- knockout
- knock out of the box
- knock socks off
- knock (someone's) socks off
- knock someone's socks off
- knock some sense into
- knock/throw for a loop
- knock together
- knock up