Dictionary > Spectacles

Spectacles

spectacles
lenses set in a frame that holds them in front of the eyes, used to correct errors of refraction or to protect the eyes. The parts of the spectacles are the lenses; the bridge between the lenses, resting on the nose; the rims or frames, encircling the lenses; the sides or temples that pass on either side of the head to the ears; the bows, the curved extremities of the temples; the shoulders, short bars attached to the rims or the lenses and jointed with the sides.
Synonym: eyeglasses, glasses.
Origin: L. Specto, pp. -atus, to watch, observe


You will also like...

genes controlling growth and development
Control of Growth & Development

Control of Growth & Development tutorials look at how the genetic makeup determines the biological processes on a da..

DNA - schematic
Genetic Mutations

This tutorial looks at the mutation at the gene level and the harm it may bring. Learn about single nucleotide polymorph..

Human perception in action
Human Perception – Neurology

This tutorial investigates perception as two people can interpret the same thing differently. Know more about human perc..

Biological Cell Defense
Biological Cell Defense

Organisms employ different strategies to boost its defenses against antigens. Humans have an immune system to combat pat..

Protein (illustration)
Protein Variety

The sequence of amino acids determines the type of protein. Protein is synthesized according to the sequence of nucleoti..

bryophyte - sporophyte and gametophyte
Meiosis and Alternation of Generations

Plants are characterized by having alternation of generations in their life cycles. This tutorial is a review of plant m..