| 释义 |
ˈwater-ˌmeasurer
[transl. of Hydrometra, f. Gr. ὑδρο-, ὕδωρ water + µέτρ-ον measure.]
A book-name for insects of the family Hydrometridæ (typical genus Hydrometra).
1854A. Adams etc. Man. Nat. Hist. 243 Water-measurers (Hydrometridæ). Head generally as broad as thorax, [etc.]. 1871Staveley Brit. Insects 319 The..Hydrometridæ, or the water-measurers, may be known at once by their very slender figure, and their habit of skimming upon the surface of the water. 1890Hardwicke's Sci.-Gossip XXVI. 28/2 Great ‘water-measurers’ (Gerris lacustris) were running about in a jerky manner, on the surface of the water. |