An instrument, used with a telescope or microscope, for measuring minute distances, or the apparent diameters of... Read More
(Science: zoology) a small domesticated cyprinoid fish (Carassius auratus); so named from its colour. It is native... Read More
1. A greek measure of length, being the chief one used for itinerary distances, also adopted by the romans for... Read More
1. That which is put, or which may be regarded as put, in the way of some of the senses; something visible or... Read More
1. Midday; noon.
2. Hence: The highest point, as of success, prosperity, or the like; culmination. I have touched... Read More
1. (Science: psychology) Perceptible to the external senses.
2. (Science: ophthalmology) The lens or system of... Read More
1. To make exact; to fit; to make correspondent or conformable; to bring into proper relations; as, to adjust a... Read More
1. Having no clothes on; uncovered; nude; bare; as, a naked body; a naked limb; a naked sword.
2. Having no means of... Read More
1. That point in the visible celestial hemisphere which is vertical to the spectator; the point of the heavens... Read More
1. (Science: botany) Opera girl, an East indian plant (Mantisia saltatoria) of the ginger family, sometimes seen in... Read More
Of, pertaining to, or corresponding to land (on earth), as opposed to water and air
The term... Read More
(Science: microscopy) The exit pupil of a microscope objective lens. The objective lens back aperture, which... Read More
1. A powerful brass instrument of the trumpet kind, thought by some to be the ancient sackbut, consisting of a tube... Read More
An instrument used, especially in trigonometrical surveying, for the accurate measurement of horizontal angles,... Read More
(Science: instrument) a microscope (an optical instrument that augments the power of the eye to see... Read More