Similar words: tactlessness, limitlessness, flightless, carelessness, uselessness, selflessness, homelessness, faithlessness. Meaning: [weɪtlɪsnɪs] 
n. the property of being comparatively small in weight.
n. the property of being comparatively small in weight. 
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1 Although we could see it, an odd weightlessness rising from the fog, we could not pinpoint its location.
2 The whole interior gives a feeling of weightlessness and harmony.
3 Many astronauts have testified to the exhilaration of weightlessness.
4 Astronauts in flight must adjust to weightlessness.
5 Astronauts in flight must adjust themselves to weightlessness.
6 Weightlessness, stress and ionic radiation on space flight can induce metabolic and endocrinal disturbance of human body, and thus influence the health of astronauts.
7 Objective To investigate the effects of simulated weightlessness and mechanical loading on bone interstitial fluid flow.
8 They are in a condition of weightlessness. And this is why, in rockets and space capsules, weightless astronauts and objects float about in the air.
9 Ojective To study the endothelial mechanism of simulated weightlessness on the reactivity of pulmonary artery.
10 The excreta not because of weightlessness, but will scatter to the installment outside.
11 The simulated weightlessness not only results in changes in expression of MHC in extrafusal fibers and transformation of myofiber type, but also changes in expression of MHC in intrafusal fibers.
12 Objective To provide theoretical support for weightlessness experiment simulated by neutral buoyancy.
13 The astronauts are conducting a series of experiments to learn more about how the body adapts to weightlessness.
14 The astronauts soon got used to the condition of weightlessness.
15 For a further discussion of what is meant by weightlessness in orbit, see chapter 4.
16 Connelly flexed his fingers and toes and felt renewed pain, a feeling of weightlessness.
17 There are sailors sleeping next to the engine room of ships and astronauts sleeping in weightlessness.
18 But thinness, as opposed to slimness, also carries connotations of weightlessness and emptiness.
19 It's based on the technology that was developed to help astronauts cope with weightlessness.
20 A primary purpose of the nine-day flight was to have been gathering evidence on how the human body adapted to weightlessness.
21 To apply engineering Methods : To the study of astronaut adaptation to weightlessness.
22 Flexibility and posture of spacesuit are indicated with human mechanics ( including weightlessness ).
23 In 1951, more than 10 years before the first human space flight, an expert in aviation medicine tried to predict some of the medical effects of space travel and, in particular, of weightlessness.
24 As you perfect this technique, the dead point will begin to feel like an instant of weightlessness.
25 The astronauts will soon get used to the condition of weightlessness.
26 Current data showed that lowering of orthostatic tolerance after prolonged weightlessness is most likely due to change of baroreceptor reflex function.
27 It tested instruments for controlling a vehicle in the weightlessness of space.
28 Objectives : To investigate the microflora in rats gastrointestinal under simulated weightlessness.
29 No cardiac arrhythmia was found in hypoxia group. Conclusion Hypoxia is more effective in counter measuring orthostatic intolerance after weightlessness than Qigong.
30 The roll disk wearing testing machine is used to study the wearability of alloy cast iron after laser melting. The test result shows that the wear weightlessness is reduced greatly.
More similar words: tactlessness, limitlessness, flightless, carelessness, uselessness, selflessness, homelessness, faithlessness, powerlessness, thoughtless, weightlifter, righteousness, weight, brightness, overweight, lose weight, underweight, put on weight, weights and measures, weirdness, callousness, nervousness, seriousness, arduousness, witless, artless, cautiousness, rootless, tactless, restless.