X only, poll

Boyd’s Bible Dictionary:

(head). The head (Num. 3:47). To cut the hair (2 Sam. 14:26).

Concise Bible Dictionary:

The skull or head, but used to express a person (Num. 1:2-22; Num. 3:47; 1 Chron. 23:3,24).

Strong’s Dictionary of Hebrew Words:

Number:
3697 (find all occurrences in KJV Bible)
Transliteration:
kacam
Phonic:
kaw-sam’
Meaning:
a primitive root; to shear
KJV Usage:
X only, poll. Compare 3765