| NOTOCHORD | • notochord n. A flexible rodlike structure that forms the main support of the body in the lowest chordates; a primitive spine. • notochord n. A similar structure found in the embryos of vertebrates from which the spine develops. • NOTOCHORD n. a backbone-like series of cells in the lowest vertebrates. |
| NOTOCHORDS | • notochords n. Plural of notochord. • NOTOCHORD n. a backbone-like series of cells in the lowest vertebrates. |
| NOTOCHORDAL | • notochordal adj. Of or pertaining to the notochord. • NOTOCHORDAL adj. relating to the notochord, a backbone-like series of cells in the lowest vertebrates. |
| PHOTOCHROMY | • photochromy n. The art or process of reproducing colours by photography. • PHOTOCHROMY n. a former process of colour photography. |
| PHOTOCHEMIST | • photochemist n. (Chemistry) A chemist whose speciality is photochemistry. • PHOTOCHEMIST n. a practitioner of photochemistry. |
| PHOTOCHROMIC | • photochromic adj. Of, related to, or produced by photochromism. • photochromic adj. (Chemistry) Relating to the part of a molecule responsible for its photochromism. • PHOTOCHROMIC adj. changing colour, and hence changing the amount of light transmitted when the incident light increases, or decreases. |
| PHOTOCHEMICAL | • photochemical adj. (Chemistry) of, relating to, or produced by photochemistry or by photochemical reactions. • photochemical n. Any chemical compound (such as silver halides) used in photography. • PHOTOCHEMICAL adj. of, relating to, or resulting from the chemical action of radiant energy and esp. light. |
| PHOTOCHEMISTS | • photochemists n. Plural of photochemist. • PHOTOCHEMIST n. a practitioner of photochemistry. |
| PHOTOCHROMICS | • photochromics n. The study of photochromism. • PHOTOCHROMIC n. a photochromic material. |
| PHOTOCHROMIES | • photochromies n. Plural of photochromy. • PHOTOCHROMY n. a former process of colour photography. |
| PHOTOCHROMISM | • photochromism n. The reversible transformation of the optical properties of a material when exposed to electromagnetic… • PHOTOCHROMISM n. the property of changing color on exposure to light or other radiation and of reverting to original color immediately the light or radiation source is removed. |
| PROTOCHORDATE | • protochordate n. Any chordate of the phyla Hemichordata, Urochordata or Cephalochordata. • PROTOCHORDATE n. a member of the Protochordata. |
| PHOTOCHEMISTRY | • photochemistry n. (Chemistry) The study of photochemical reactions. • PHOTOCHEMISTRY n. science, processes and properties of chemical changes effected by light. |
| PHOTOCHROMISMS | • photochromisms n. Plural of photochromism. • PHOTOCHROMISM n. the property of changing color on exposure to light or other radiation and of reverting to original color immediately the light or radiation source is removed. |
| PROTOCHORDATES | • protochordates n. Plural of protochordate. • PROTOCHORDATE n. a member of the Protochordata. |
| PHOTOCHEMICALLY | • photochemically adv. By means of, or in terms of, photochemistry. • PHOTOCHEMICAL adv. of, relating to, or resulting from the chemical action of radiant energy and esp. light. |