Aplacophora: Definition and part of speech

Aplacophora

  1. n. pl. A division of Amphineura in which the body is naked or covered with slender spines or setae, but is without shelly plates.

The word meanings were obtained from OPTED(The Online Plain Text English Dictionary), which is based on “The Project Gutenberg Etext of Webster’s Unabridged Dictionary” which is in turn based on the 1913 US Webster’s Unabridged Dictionary (See Project Gutenburg), as a text file.

Aplanatic: Definition and part of speech

Aplanatic

  1. a. Having two or more parts of different curvatures, so combined as to remove spherical aberration; — said of a lens.

The word meanings were obtained from OPTED(The Online Plain Text English Dictionary), which is based on “The Project Gutenberg Etext of Webster’s Unabridged Dictionary” which is in turn based on the 1913 US Webster’s Unabridged Dictionary (See Project Gutenburg), as a text file.

Aplustre: Definition and part of speech

Aplustre

  1. n. An ornamental appendage of wood at the ship’s stern, usually spreading like a fan and curved like a bird’s feather.

The word meanings were obtained from OPTED(The Online Plain Text English Dictionary), which is based on “The Project Gutenberg Etext of Webster’s Unabridged Dictionary” which is in turn based on the 1913 US Webster’s Unabridged Dictionary (See Project Gutenburg), as a text file.