American Heritage® Dictionary of the English Language, Fourth Edition
- adj. Convex on both sides or surfaces: a biconvex disk.
Century Dictionary and Cyclopedia
- Convex on both sides; doubly convex, as a lens. See lens.
- adj. Having both sides convex
GNU Webster's 1913
- adj. Convex on both sides.
- adj. convex on both sides; shaped like a lentil
“Carton containing a blister strip containing 21 yellow film-coated biconvex tablets and 7 white film-coated biconvex tablets calender pack.”
“On the biconvex hieroglyphic seal found at Troy, see J.”
“(Gr. [Greek: kissos], ivy), biconvex; xystroidal or sistroidal (Gr. [Greek: xystris], a tool for scraping), concavo-convex; amphicoelic”
“The form in most general use is that known as the Abbé (Fig. 47) and consists of a plano-convex lens mounted above a biconvex lens.”
“Grain is narrow, obovoid, biconvex, with two grooves on the anterior side and with a long embryo.”
“Where two toes overlap, it will be observed that there is a deeper shadow, like the section of a biconvex lens.”
“The _crystalline lens_ is a transparent, biconvex body sustained by the ciliary processes.”
“When divided horizontally, it exhibits, to some extent, the appearance of a biconvex lens (Fig. 742), while a coronal section of its central part presents a somewhat triangular outline.”
“The lens is a transparent, biconvex body, the convexity of its anterior being less than that of its posterior surface.”
“The third or solid refracting medium is a biconvex lens, with its convexity greatest on its posterior surface, which is lodged in a depression in the vitreous humor, while its anterior surface corresponds to the opening of the pupil.”
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