# concept[].definition
before lunch (from lat. ante cibus diurnus)

# concept[].definition
before breakfast (from lat. ante cibus matutinus)

# concept[].definition
before dinner (from lat. ante cibus vespertinus)

# concept[].definition
Description: meal (from lat. ante cibus)

# concept[].concept[].definition
Description: lunch (from lat. cibus diurnus)

# concept[].concept[].definition
Description: breakfast (from lat. cibus matutinus)

# concept[].concept[].definition
Description: dinner (from lat. cibus vespertinus)

# concept[].definition
Description: Prior to beginning a regular period of extended sleep (this would exclude naps).  Note that this might occur at different times of day depending on a person's regular sleep schedule.

# concept[].definition
after lunch (from lat. post cibus diurnus)

# concept[].definition
after breakfast (from lat. post cibus matutinus)

# concept[].definition
after dinner (from lat. post cibus vespertinus)

# concept[].definition
Description: Upon waking up from a regular period of sleep, in order to start regular activities (this would exclude waking up from a nap or temporarily waking up during a period of sleep)

                        
                           Usage Notes: e.g.

                        Take pulse rate on waking in management of thyrotoxicosis.

                        Take BP on waking in management of hypertension

                        Take basal body temperature on waking in establishing date of ovulation