Final answer:
The word 'sphygmoid' means resembling a pulse and is formed by combining 'sphygm/o' and the suffix '-oid'. It relates to the measurement of blood pressure by a sphygmomanometer.
Step-by-step explanation:
To build a word using 'sphygm/o' that means resembling a pulse, we would use the adjective sphygmoid. This term is derived from the Greek 'sphygmos', which means 'pulse', and the suffix '-oid', which means 'resembling or like'. A sphygmomanometer is a medical device that measures blood pressure, indicating the strength and rhythm of the pulse.