1. (n.) A swallowing into; assimilation; incorporation; as, the absorption of a smaller company into a larger\.

2. (n.) An imbibing or reception by molecular or chemical action; as, the absorption of light, heat, electricity, etc.

3. (n.) In living organisms, the process by which the materials of growth and nutrition are absorbed and conveyed to the tissues and organs.

4. (n.) Entire engrossment or occupation of the mind; as, absorption in some employment.

Walter Mitty ablation absence of mind absentmindedness absorbed attention absorbency absorbent abstractedness abstraction adsorbent adsorption application assimilation attrition bemusement bile blotter blotting blotting paper brown study burning up castle-building chemisorption chemosorption close study concentration consumption contemplation contemplativeness daydream daydreamer daydreaming deep study deep thought depletion depth of thought digestion digestive system drain dream dreaming eating up embarrassment endosmosis engagement engrossment enmeshment entanglement erosion exhaustion exosmosis expending expenditure fantasy fantasying finishing fit of abstraction gastric juice gastrointestinal tract imbibing immersion implication impoverishment inclusion infiltration ingestion intentness intestinal juice involution involvement liver meditation melancholy monomania mooning moonraking muse musefulness musing muted ecstasy obsession osmosis pancreas pancreatic digestion pancreatic juice pensiveness percolation pipe dream pipe-dreaming predigestion preoccupation profound thought rapt attention reflectiveness relation reverie saliva salivary digestion salivary glands secondary digestion seepage single-mindedness soaking-up sorption speculativeness spending sponge sponging squandering stargazing studiousness study submersion taking-in thoughtfulness trance using up wastage waste wastefulness wasting away wearing away wearing down wistfulness woolgathering