Scotopic see superposition eye

scraper n. [A.S. scrapian, scraper] 1. Any structure or specialized part of a structure adapted for rasping or scraping. 2. (ARTHRO: Insecta) In Orthoptera, the sharpened anal angle of the front wing that functions as a stridulating mechanism. see file.

screening a. [OF. escren, barrier] Selective procedures to isolate animals or chemicals from populations, complex mixtures, or background material.

screw dislocation (BRYO) Spiral growth resulting from lattice defects in calcite crystals making up their skeletal units.

scrobe n. [LL. scrobis, ditch] A groove or furrow for the reception of an appendage.

scrobicula n. [LL. dim. scrobis, ditch] (ECHINOD: Echinoidea) A bare area surrounding a boss (base of a spine) on the test; areola.

scrobicular tubercles (ECHINOD: Echinoidea) Secondary tubercles with spines encircling the base of a spine on the test.

scrobiculate a. [LL. dim. scrobis, ditch] Marked with pits or hollows.

scrobicules n. [LL. dim. scrobis, ditch] (ECHINOD: Echinoidea)

Small secondary spines on the scrobicular tubercles of the test.

scrobiculus n. [LL. dim. scrobis, ditch] A pit or depression.

scrobis n.; pl. -es [LL. scrobis, ditch] (ARTHRO: Insecta) In Scarabaeoidea larvae, a sunken lateral mandibular region defined by two apically converging lateral carinae.

scrotal membrane (ARTHRO: Insecta) The peritoneal envelope covering the testes; sometimes pigmented.

scrotiform a. [L. scrotum, pouch; forma, shape] Purse- or pouch-shaped.

Was this article helpful?

0 0

Post a comment