blue topaz; topaz (aluminum fluorosilicate)
blueprint; source material on which later works (books, movies etc) are based
blue shift (in the Doppler effect)
cyanobacteria (blue-green algae)
blue collar; common laborer
(bird species of China) slaty bunting (Emberiza siemsseni)
(bird species of China) Swinhoe's pheasant (Lophura swinhoii)
(bird species of China) Siberian blue robin (Larvivora cyane)
an official report (e.g. governmental)
(bird species of China) blue rock thrush (Monticola solitarius)
(bird species of China) common green magpie (Cissa chinensis)
(bird species of China) black-capped kingfisher (Halcyon pileata)
porcine reproductive and respiratory syndrome (PRRS); blue-ear swine fever
sumac (Rhus coriaria), east Mediterranean deciduous shrub with fruit used as spice; also called tanner's sumach or vinegar tree
(bird species of China) blue-breasted quail (Coturnix chinensis)
blue-tongue (viral disease of livestock)
blueberry (Vaccinium angustifolium)
(bird species of China) blue eared pheasant (Crossoptilon auritum)
(bird species of China) blue pitta (Hydrornis cyaneus)
(bird species of China) blue-throated flycatcher (Cyornis rubeculoides)
(bird species of China) bluethroat (Luscinia svecica)
(bird species of China) blue-throated bee-eater (Merops viridis)
(bird species of China) grandala (Grandala coelicolor)
(bird species of China) Himalayan bluetail (Tarsiger rufilatus)
(bird species of China) white-browed shortwing (Brachypteryx montana)
(bird species of China) blue-winged leafbird (Chloropsis cochinchinensis)
(bird species of China) blue-winged laughingthrush (Trochalopteron squamatum)
(bird species of China) blue-winged minla (Minla cyanouroptera)
(bird species of China) blue-eared kingfisher (Alcedo meninting)
(bird species of China) slaty-breasted rail (Gallirallus striatus)
(bird species of China) masked booby (Sula dactylatra)
close male friend; confidant
blue lace flower (Trachymene caerulea)
(bird species of China) Mrs. Gould's sunbird (Aethopyga gouldiae)
(bird species of China) blue-capped redstart (Phoenicurus coeruleocephala)
(bird species of China) blue-naped pitta (Hydrornis nipalensis)
(bird species of China) purple-naped sunbird (Hypogramma hypogrammicum)
(bird species of China) blue-winged pitta (Pitta moluccensis)
(bird species of China) blue-rumped pitta (Hydrornis soror)
(bird species of China) European roller (Coracias garrulus)
(bird species of China) blue-bearded bee-eater (Nyctyornis athertoni)
(bird species of China) blue-fronted redstart (Phoenicurus frontalis)
(bird species of China) blue-throated barbet (Megalaima asiatica)
(bird species of China) blue-eared barbet (Megalaima australis)
(bird species of China) blue-rumped parrot (Psittinus cyanurus)
(bird species of China) blue-fronted robin (Cinclidium frontale)
cabbage; Chinese broccoli; gai larn
indigo dye; Polygonum tinctorium
indigo woad root; root of Isatis indigotica (used in TCM)
red cabbage; purple cabbage
hemocyanin (protein in the blood of molluscs etc with a respiratory function similar to hemoglobin)
(bird species of China) verditer flycatcher (Eumyias thalassinus)
(bird species of China) pygmy blue flycatcher (Muscicapella hodgsoni)
(bird species of China) hill blue flycatcher (Cyornis banyumas)
blue screen of death; computer crash screen
(bird species of China) slaty-blue flycatcher (Ficedula tricolor)
(bird species of China) azure tit (Cyanistes cyanus)
(bird species of China) Zappey's flycatcher (Cyanoptila cumatilis)
(bird species of China) white-winged magpie (Urocissa whiteheadi)
(bird species of China) red-billed blue magpie (Urocissa erythroryncha)
(bird species of China) pale blue flycatcher (Cyornis unicolor)
(bird species of China) yellow-billed blue magpie (Urocissa flavirostris)
(bird species of China) snowy-browed flycatcher (Ficedula hyperythra)
(bird species of China) vivid niltava (Niltava vivida)
(bird species of China) white-tailed flycatcher (Cyornis concretus)
(bird species of China) white-tailed robin (Myiomela leucura)
(bird species of China) ultramarine flycatcher (Ficedula superciliaris)
(bird species of China) red-flanked bluetail (Tarsiger cyanurus)
(bird species of China) slaty-backed flycatcher (Ficedula hodgsonii)
red, orange, yellow, green, blue, indigo, violet; Colors of the rainbow