Isopter
isopter i·sop·ter (ī-sŏp’tər)
n.
A curve of equal retinal sensitivity in the visual field designated by a fraction, the numerator being the diameter of the test object, and the denominator being the testing distance.
Read Also:
- Isopteran
isopteran (ī-sŏp’tə-rən) See termite.
- Isopterous
[ahy-sop-ter-uh s] /aɪˈsɒp tər əs/ adjective 1. belonging or pertaining to social insects of the order Isoptera, comprising the termites.
- Isopycnal
[ahy-suh-pik-nik] /ˌaɪ səˈpɪk nɪk/ adjective 1. Also, isopycnal [ahy-suh-pik-nl] /ˌaɪ səˈpɪk nl/ (Show IPA). having the same density. noun 2. a line drawn on a map connecting all points having the same density, as of water or air. /ˌaɪsəʊˈpɪknəl/ noun 1. a line on a map connecting points of equal atmospheric density
- Isopycnic
[ahy-suh-pik-nik] /ˌaɪ səˈpɪk nɪk/ adjective 1. Also, isopycnal [ahy-suh-pik-nl] /ˌaɪ səˈpɪk nl/ (Show IPA). having the same density. noun 2. a line drawn on a map connecting all points having the same density, as of water or air.
- Isopyre
[ahy-suh-pahyuh r] /ˈaɪ səˌpaɪər/ noun, Mineralogy. 1. an impure variety of opal, containing alumina, lime, and iron sesquioxide.