Definition of notum in English:
notum
nounPlural nota ˈnəʊtəmˈnōdəm
Entomology (in an insect) the tergum or dorsal exoskeleton of the thorax.
Example sentencesExamples
- These mutant pupae have defects including shortened or bent legs, bristle defects, a split notum, and wing abnormalities.
- Of the three regions of adult cuticle scored for ectopic bristles, the dorsal notum had the largest number, so data from that region are likely to be most reliable.
- The notum is well-developed, but it is impossible to tell if the eyes are large or meet medially.
- These animals typically had extreme morphological defects including split and malformed nota and greatly reduced eyes.
- The frizzled pathway has been shown to be a key regulator of planar polarity for hairs on the wing, ommatidia in the eye, and sensory bristles on the notum.
Derivatives
adjective
Entomology The male scorpion fly possesses what is called a notal organ, a clamp behind its wings.
Example sentencesExamples
- Crosses to assess developmental delay, dominant effects on wing size, and notal bristle phenotypes were set up in vials and then transferred to egg-laying cages for 2-hr laying periods.
Origin
Late 19th century: from Greek nōton 'back'.